Dreaming of the things we desire is not just a movie script: Science has been researching for years how much we have the ability to influence the content of our dreams and how we can use the time of night to learn, create, or heal emotional wounds. Although the brain in a sleeping state is still quite rebellious, we now know that it is possible to direct the mind in certain ways, increase the likelihood of dreaming about a specific subject, and in some cases, transform nightmares into gentler experiences.

This field of study is grouped under the term "dream engineering" or dream incubation; a new area where psychology, neuroscience, sleep technology, and even marketing intersect. Tools used to shape the time spent on the pillow have started to increase, from audio recordings listened to while falling asleep, to techniques for keeping a dream journal or creating lucid dreams, but it is still far from offering complete control.

What Does It Mean to Influence Our Dreams?

When we talk about influencing our dreams, we are not talking about selecting each scene like a remote control; we are talking about increasing the likelihood of certain themes, images, or emotions appearing in the dream. This is a probability-based effect, not millimetric programming. The idea is simple: What we think, see, feel, and hear before falling asleep mixes with the brain's internal processes and can sometimes seep into our dreams.

In this context, the concept known as "dream engineering" involves using specific stimuli (such as words, sounds, or images) at critical moments during the transition to sleep and REM stage to guide this mixture. Dream incubation is exactly this: preparing the mind with a theme or goal to ensure it has a better chance when dream time comes.

Some researchers point out that rather than "controlling" dreams, we are engaging in the act of tilting the balance of our memory and emotional systems. The brain still spontaneously produces stories, but providing it with material in advance, focusing attention, and repeating specific signals can give more weight to the night's narrative.

In practice, influencing our dreams has been researched for various purposes such as enhancing skill learning, promoting creativity, strengthening useful memories, or alleviating the effects of complex traumas and grief. However, with clear boundaries: it is currently not possible to choose exactly what you will dream about every night, even if you are a lucid dream expert.

The Science of Sleep: REM, Memory, and Emotions

We go through several stages of sleep that repeat throughout the night, one of which is the famous REM stage (rapid eye movement). During this stage, the most intense, bizarre, and emotionally charged dreams typically emerge. The brain operates in a specific way where visual, motor, emotional, and autobiographical areas are strongly activated, while the most logical and rational regions relax a bit.

This combination causes dreams to feel like night journeys filled with time jumps, impossible scenarios, and fluctuating emotions. We might see nonexistent people, experience situations that are physically impossible, or combine memories from different time periods into a single dream. When we wake up, we often forget a large part of this mental movie; we are left with only fragments or feelings.

The National Institutes of Health state that REM sleep is closely related to storing memories, learning, and regulating mood. However, the exact mechanisms governing this are not yet fully understood. What we do know is that this stage is repeated several times and typically concentrates in the last third of the night; therefore, many nightmares or very vivid dreams occur in the early morning hours.

The quality of the REM stage affects not only what we dream about but also how we feel the next day: our emotional system, the ability to interpret and respond to social signals largely depends on how the night went. In fact, just one hour of chronic sleep deprivation per day can start to show its effects on mood, attention, and memory.

In this way, sleep has emerged as a fundamental biological process not only for replenishing physical energy but also for clearing and reorganizing memories, eliminating unnecessary information (the “parasite memories” that serve no purpose), and recalibrating how we perceive the world and the people around us.

Dream Engineering: From Ancient Temples to Modern Devices

The idea of preparing for dreams to receive answers or guidance is not new. In Ancient Greece or some Thai traditions, people would sleep hoping to receive enlightening dreams or guidance messages by going to specific temples. In a way, this was a ritual form of dream incubation.

In modern times, scientific interest in modulating the content of dreams made a significant leap in the early 2000s thanks to the “Tetris effect”. Professor Robert Stickgold from Harvard University observed that those who played this video game for hours reported seeing pieces falling in their visual field as they fell asleep. Many described images of blocks and game-like movements as they crossed the threshold of sleep.

This phenomenon clearly demonstrated for the first time that recent experiences could systematically infiltrate the sleep onset phase and dreams. For researchers, this was a moment of great excitement: it experimentally proved that dream content is not entirely random and can be nudged in certain directions through what we do while awake.

From this point onward, different scientific groups have developed technologies designed to interact with the brain when it enters specific sleep states. One of the most well-known devices is Dormio, developed in collaboration with Harvard and MIT. This device monitors physiological signals (such as muscle relaxation and electrical activity) to detect the hypnagogic state; this is the ambiguous boundary between wakefulness and sleep where vivid images and strange thoughts emerge.

When the device detects that a person has entered this state, it emits a simple verbal cue; for example: “remember to dream of water”. After several cycles of this procedure, participants report that the suggested theme appears more frequently in their dreams. In some studies, over 70% of individuals reported dreaming about the specified theme; this supports the idea that we can partially guide what the brain dreams about during particularly sensitive moments.

Real-Life Examples and Testimonies Related to Dream Incubation

Beyond laboratories, there are people who have made this practice a part of their creative or therapeutic lives. A notable example is Will Dowd, a writer and artist from Massachusetts; he had to give up traditional reading due to a degenerative disease affecting his vision and mobility. While searching for a way to remain surrounded by literature, he began experimenting with dream incubation using audio recordings of poetry.

Dowd listened to these recordings as he fell asleep and noticed that his nights were filled with intense and highly detailed dream imagery: mysterious cities destroyed by massive floods, races with foxes over moonlit waves, and other surreal scenes he described as “dreaming with jet fuel.” These dreams became the raw material for a book and, most importantly, offered an emotional escape from the limitations imposed by his illness.

Another interesting area of research focuses on the role of dreams in the grieving process and trauma. Some people who have lost loved ones experience long-lasting nightmares associated with this experience. However, some testimonies describe how, after certain medical events or changes in sleep patterns, these nightmares transformed into gentler and more comforting dreams; it’s as if the brain has found a way to make peace with the painful moment.

Teams from universities like Stanford are studying dreams under anesthesia. While anesthesia is not the same as normal sleep, many patients report unusually positive dream experiences when allowed a slower and more gradual awakening after surgery. In some cases, these episodes have a significant therapeutic effect on emotional pain associated with anxiety, postoperative stress, or serious illness.

In the future, the possibility of designing clinical protocols based on the respectful management of these different states of consciousness is being explored; thus, one day, PTSD, widespread anxiety, or depression may lead to the establishment of “dream clinics” where these conditions are used for treatment. Although still in the experimental phase, it opens a very interesting door to using dreams as a mental health tool.

How Much Can We Influence? Limits and Real Possibilities

Along with all this, one might get the impression that by seeing some images or listening to an audio recording, we can definitively determine what dreams we will have that night. However, reality is quite stubborn. Today's neuroscience indicates that the brain operates largely through automatic mechanisms during sleep, far removed from the conscious control we have when awake.

This means that, at present, it is impossible to voluntarily and continuously program the detailed content of dreams every night. We can increase the likelihood of dreaming about a theme, a place, or a person, but we cannot script everything point by point. Even those who control lucid dreams — dreams in which the person is aware they are dreaming and can sometimes change the story — face significant limitations: certain elements in the dream simply evade their control.

In practice, the most robust effect is achieved by combining several factors: repeated exposure to the desired theme throughout the day (images, readings, videos), guided concentration before falling asleep, and a restful environment that ensures deep and uninterrupted sleep. Yet there are no guarantees: the brain may decide to engage with something else that night.

Scientists often emphasize that dream engineering should not be marketed as a kind of “mental remote control,” but rather seen as a tool of possibility and support for other psychological processes. A considerable number of recordings, control groups, and methods that allow comparisons of what happens under different conditions are necessary to rigorously study these phenomena; this is possible at least when you manage to guide the themes of dreams somewhat.

In this context, the ability to guide dreams opens a new frontier: researchers may consider forming study groups related to similar dreams for the first time; this greatly facilitates understanding what the brain is doing during sleep and how this relates to mental health, memory, or creativity.

Methods to Influence Your Dreams While Awake

If you want to increase your chances of dreaming about a specific thing — a person, a place, a situation — the key is what you do before sleeping and throughout the day. You cannot guarantee the outcome, but you can increase your chances by using various techniques based on scientific and clinical foundations.

One of the most referenced tools is the dream journal. This involves noting everything you remember from your dreams when you wake up: scenes, characters, emotions, and even vague details. This practice strengthens your “dream memory,” allows your brain to pay more attention to dreams, and helps you identify recurring patterns. Over time, it will become easier to remember your dreams and observe the effects of the influencing techniques.

Another important technique is dream incubation. Here, the goal is to focus on a specific image or idea you want to see in your dreams before falling asleep: for example, being on a specific beach, reuniting with someone, or practicing a skill. You can visualize the scene in detail, repeat a relevant phrase in your mind, or place reminder symbolic objects next to your bed.

This preparation can be complemented by soft sensory stimuli such as short audio recordings played while falling asleep; as done by Will Dowd with poetry or methods suggested by devices like Dormio. It is important that the stimuli are not too strong, so they do not wake you up, but should be clear enough to be recorded in the hypnagogic state.

Additionally, it is important to maintain the foundation: regular sleep routines, getting enough sleep, and avoiding sudden awakenings. Fragmented sleep makes it difficult to experience long-lasting REM stages and to remember dream experiences; therefore, any attempt to influence content remains incomplete. At the same time, good rest enhances your concentration and visualization abilities; which is necessary for conscious incubation.

Lucid Dreams: When You Realize You're Dreaming

While you might ask a question related to inner control rather than choosing a dream topic, it is important to mention lucid dreams because they are one of the most researched contexts for altering dream content. In these dreams, the person is aware that they are dreaming during the dream; this sometimes allows them to change the scene, question physical laws, or confront fears.

Not everyone can spontaneously experience lucid dreams, but with practice and patience, you can learn to trigger them. One of the most commonly used techniques is reality checking: throughout the day, you continuously ask yourself, “Am I dreaming or awake?” and perform small tests like checking texts twice, looking carefully at your hands, or trying to pass a finger through a surface.

By making this question a habit, the likelihood of it appearing in a dream increases; you notice something is inconsistent: the text changes, your hands look strange, or physical laws fail. This “error” allows you to realize that you are dreaming, and lucidity can begin here. Once you are lucid, it is possible to change the narrative of the dream, alter scenarios, or make a nightmare more manageable.

However, even in lucid dreams, there is no absolute control. Many lucid dreamers report that they can only change certain parts of their dreams or for brief periods before waking up. The brain still has its own priorities and may insist on revisiting a specific memory or emotion despite our efforts to redirect the experience.

Therefore, combining pre-incubation (choosing a topic before sleep) and lucid dream practices (recognizing that you are dreaming) can be particularly powerful: first, you increase the likelihood of the dream revolving around a specific topic, and if you achieve lucidity, you can continue to shape the events within that theme.

The Functions of Sleep: Much More Than “Seeing Strange Things”

To understand why influencing our dreams makes sense, it is important to remember what sleep does for us. At a biological level, good sleep is as critical a health foundation as nutrition or breathing: quality sleep strengthens the immune system, helps regulate hormones, protects the cardiovascular system, and reduces the risk of many diseases. Each night's stage takes on different tasks, and systematically altering these cycles comes at a cost.

At a cognitive level, a restful night is fundamental for maintaining attention, mental acceleration, creativity, and decision-making ability. When we sleep less than needed or experience poor-quality nights in succession, the mind becomes slower, more forgetful, and irritable. The feeling of being “heavy” often simply stems from a lack of sufficient rest.

Additionally, sleep is a stage where the brain determines which memories will remain and which will go. It is like a major nightly cleaning where useful experiences are reinforced and trivial data is discarded: a parking spot number from a few weeks ago, irrelevant dates, insignificant details. This cleaning of “junk memories” prevents memory from becoming cluttered with unnecessary information.

In the emotional realm, stages, and especially REM sleep, serve a kind of night therapy function. Some studies suggest that safely re-experiencing certain events during dreams helps reduce the associated anxiety burden, find creative solutions to problems, and better integrate our worries. Therefore, expressions like “consulting with the pillow” or “seeing everything clearer in the morning” have emerged.

If REM sleep is disrupted for a long time, difficulties arise in regulating mood, accurately interpreting the emotions of others, and responding proportionately. It is common for individuals who are not getting enough rest to misinterpret social signals, see threats where there are none, or struggle to distinguish friends from foes in a metaphorical sense.

The Ethical Dimension of Emotions, Therapy, and Dream Engineering

The ability to influence dreams, at least in part, has generated significant interest in the therapeutic field, especially in the treatment of post-traumatic stress disorder, anxiety, and depression. It has been observed that if we allow a person to dream about the things that cause them nightmares in a safe environment, the intensity and frequency of those nightmares decrease over time; it is as if the mind has found a way to reprocess the painful memory.

However, this potential has also raised ethical concerns. In 2021, a well-known beer brand launched an advertising campaign based on dream incubation: it invited people to watch a video filled with dream imagery (mountain valleys, waterfalls, a talking fish wearing a top hat) and promised that this would increase the likelihood of dreaming about the product.

A few sleep researchers signed an open letter expressing their concerns about the commercial use of these techniques. They pointed out that sleep is one of the last remnants of psychological privacy and that the advertising industry entering this space could be a dangerous red line. According to them, advancements in dream engineering should focus on health, creativity, and understanding the mind, rather than on making more sales.

Other voices believe that these concerns are somewhat exaggerated and point out that the current impact on dreams is very limited compared to traditional advertising that is already present around us during the day. From this perspective, such campaigns could help make dream incubation visible to the general public; this is possible if done with transparency and realistic expectations.

In any case, the discussion has begun: as sleep monitoring and sensory stimulation technologies develop, it will be necessary to set clear boundaries on acceptable uses and determine which situations would constitute an unnecessary intrusion into the sleeping mind. Just as we regulate other areas of advertising and data manipulation, it would not be surprising if applications related to dream engineering are also legislated in the future.

Meanwhile, for those who approach this topic with personal curiosity, the key is to use these techniques with self-respect, common sense, and healthy goals: exploring creativity, better understanding your own emotions, or alleviating fears, without obsessively fixating on controlling everything that passes through your mind during sleep.

Everything we know today shows that dreams are much more than a simple nighttime display: they are a space where memories are reorganized, emotions are regulated, and our understanding of the world is rebalanced. Influencing our dreams does not mean controlling this space; rather, learning to accompany it, providing appropriate stimuli to the brain, and ensuring rest means making that one-third of our life spent in sleep an ally for our mental health, creativity, and the way we exist in the world.