I've been working on a novel and one of the key points is incarnation. So I've been pondering this mystery and trying to figure out what I'm going to say about it. I know how it works physically, when the sperm and egg come together the zygote is formed and it turns into a living fetus... but at what point does incarnation occur? Is incarnation just a matter of consciousness, or does the soul enter the body? Where is the seat of the soul? Is it local or non-local?