All people have their own processes of coming to terms with all of the things they did rightly and wrongly when they were alive. Having dealt with these and rationalized this state, they can then go on to live in the spiritual world. However, there comes a time when the pull to return to a physical life comes upon everyone. The path back to Earth or any other world, for there are millions of civilizations, is a specialized one that is conducted by highly trained spirits. After a long preparation, the spirit is released and guided to the parents and into the environment, required to further their spiritual progression.
The experiences we have during each life time help us to learn to deal with many different complexities. From what do we understand from this? Think about the things you instinctively know to be right or wrong. Your chosen parents will have guided you as a child, to one degree or another, but there are concerns they didn’t mention that you just know are right or wrong. Where does this knowledge come from? Do you know?