Legend has it that a person's soul weighs 21 grams. When 1 gram of soul fragments complement another broken soul, the body is activated again to welcome the mottled light.
The pain and happiness you forget will eventually be compensated in another way.
Although the above is very high-level, in fact, two people skip falling in love and go directly to time running-in. You are my inseparable family.
The little soul that travels through time only gives a sense of presence when there is a lack of common sense in the early stage.
Conception: