I'm sorry Kentucky but, I thought you weren't looking for answers or, were you just speaking metaphorically? What are all these lifetimes "based" on? Do they have to have a base? If mankind exist, isn't that enough reason? I would think that the evolution on this planet would be a good basis if nothing else. What "thought" was put into a subspecies existence that made him rise to the height of a creative human being. Surely, Darwin's theories play only a small part but, without some memory retained in the spirit, we as humans would only "be walking in circles" instead of continuity reaching to higher levels of intelligence. Humanity has proven itself time and time again in our examples of creativity, and the highest existence of mankind is his ability to be creative. So, these Judeo-Christian-any religion thoughts sometimes need to be moved over to one side so those trapped inside those beliefs can finally take a good look at the world and see what is really going on.
Ernest