Devourer of Destiny

If the destiny of a person can be seen as a small puddle, then the destiny of a civilization is the sea formed by the gathering of all human puddles. The breadth of this sea is determined by the total number of human beings, and the depth is determined by the range of knowledge of human civilization. The creatures born on this sea of ​​destiny will use part of themselves as seeds and put them into the bodies of certain people to allow civilization to develop and progress. This is how it should have continued to develop, but...