2.8.Question: Does it help to do certain exercises before going to sleep; for being aware of one's dreams, for comprehending one's sleep in reality, or for learning and understanding what happened during sleep?
Answer: The question is ambiguous; firstly - it depends on the type of exercises, because some exercises can bring you such dreams that you couldn't even dream they might occur. That can happen too.
But in principle, the essence (soul) is very passive outside of the body. It has a certain potential which is accumulated by a person each day.
When you come home from work, let's say for example, after a hard day of unloading freight cars, when you crawl into bed and fall asleep, you don’t have much of your potential left for the essence (soul) to use during sleep.
Therefore, there are almost no such grandiose events happening during sleep. The essence (soul) simply wanders off and allows the physical body to recover, because when the soul leaves the body, the biochemical processes in the cells proceed according to completely different principles and creates the conditions for a rapid cleansing of wastes from the body. Therefore, a person wakes up in the morning feeling rested.
But if a person does not have a deep sleep? What is deep sleep? It’s when the soul has left the body, and (the body) is empty. And if a person does not have a deep sleep, if he always has a 'shallow' sleep, then the soul remains in the body and usually after such a sleep, the person wakes up very tired. Because the wastes that accumulated during the day were not released overnight, but instead even increased.
But when a person sleeps deeply i.e. they just went to sleep and suddenly it’s already morning, this means that the soul completely left the body, and this allows the body [to get free] of the waste completely. And then a person wakes up feeling good, etc. There are many aspects to this, and I can’t touch all of them but I have tried to reflect on some of them.