Every person you see in dreams has come across in your real life. why?
Answers
that while dreaming, the brain cannot invent new people out of nowhere. Instead, the brain shows people we've seen while awake, or combines a mix of previously-seen physical features to create a "new" person. How would you prove/disprove this theory? Why does the brain do this?”
This is a really interesting question, but unfortunately, it’s an impossible question to answer experimentally. To test this theory, we would need an accurate image of the unknown dream person and a reliable and accurate way to know if the dreamer had ever seen the person in their waking life. This is difficult for a number of reasons. First, our dreams are typically not vivid enough to distinguish the individual facial or body features that would be required to get a precise image of a dream person. Think about your own dreams -- when you dream about someone you know, do you recognize that person because you can see their face clearly or do you just know that it’s them?
Second, our memories about our dreams are extremely fleeting. We start to forget our dreams as soon as we wake up, making the precise recollection of a person or face extremely difficult. To make the problem worse, when we can’t remember something clearly, our brains have the habit of filling in the gaps with people/places/things from previous experiences or similar events, so even if we did dream of a unique person, if we weren’t able to recall that person while awake, our brains would likely fill in the details with people that we have seen before.
Third, an individual person could encounter dozens or even hundreds of human faces on a daily basis from commuting to and from school or work, or from seeing people on the news or in television and movies. Most of these people will remain strangers to our conscious selves, but their faces and figures will still be perceived and processed by our brains. Because of this, it would be impossible to say for certain that you had never seen a person or face outside of your dream before.
Because of these issues, among others, this theory cannot be tested in a meaningful or accurate way. However, it is an interesting question, so if we speculate based on what we do know about the nature of dreams and our brains, it is more likely that our sleeping brain recycles previously seen faces rather than creating new ones. This has to do with what dreams are made of: during wakefulness our thoughts are influenced by input from both the external environment - i.e., the people and things we see, hear, and interact with - as well as our internal environment, i.e., our memories; during sleep, however, our brains receive very little input from the external environment, which leaves our memories as the source for most, if not all, of the material that
Every person we see in our life always comes in our dream when we think more about them or before sleeping when we think about them and sleep. If you are thinking about your parents before sleeping then definitely you will see your parents in your dream that night. This is an example