The consciousness of staying behind and traveling abroad is in a state of quantum entanglement (note: some researchers point out that there is also a kind of consciousness in the body, which only exists to maintain life. Even if the brain consciousness is completely isolated, "life consciousness" can still maintain the continuation of life.
The origin of dreams
Some quantum consciousness researchers have pointed out that the activity of a person's thinking, the frequency of "spirit" feeling, and the knowledge and feelings that he often gains without a teacher (the examples of the above three scientists) are all related to the other half consciousness of traveling outside the body in his dream. The universe itself is a super database, which stores the evolution process and memory of everything in the world since its birth.
Semi-detached consciousness takes sleep and falling asleep as an opportunity to roam freely in the universe, not only to relax fatigue and replenish energy, but also to obtain knowledge from the cosmic database. However, most semi-detached consciousness can only get limited knowledge every time it leaves the body, because the lower vibration frequency means low energy (or too shallow energy level).
Only a few semi-detached consciousness with high vibration frequency can go deep into the cosmic database and gain profound knowledge (no wonder Plato told his disciples that knowledge already exists, and we came to this world only to learn what we have forgotten. )。