I read somewhere (I forget the book) that rebirth as distinct from reincarnation can be summed up like this. Imagine a huge pool of water, that represents the collective conciseness that is reality. Everything, everyone all part of the one. Every so often someone throws a pebble in the pond and it s ripples travel out across the pond. That is rebirth. Thatis our earthly life for this birth, Then our body dies, and we return to the whole. Then at some point another pebble is thrown and that is another rebirth. (NOT reincarnation). The ripples move out as before eventual disappearing back into the collective pool. That is the cycle of rebirth. It is what makes sense to me at least.