It would be fabulous, to believe that somehow everybody moves on from one life to another. To have the ability to receive suddenly parts of memories from a previous existence (maybe less fun if you happened to be a worm, or a cockroach. That must make you think of your own behavior. To be able to blame Karma for all the miseries in life, and thank it for the success, that must be pleasant. But imagine, if you happen to stomp dead a cockroach that was the less nice aunt of yours, or catch a fish with a worm who was the uncle, who always smelled of old booze.
Unfortunately, I have no such believe. I have big doubts on whether living things have a soul or a spirit, what ever you want to call it. And since that is missing, I guess any beautiful picture of reincarnation might be a bit difficult to paint. What I think, is that we a trapped in a cycle of matter. Our molecules and atoms will keep turning in the great cycle of life, without any strings attached to our mental side.
Honestly, the cycle of our building blocks, that, too, is a beautiful idea. Our tiny oxygen, carbon and nitrogen molecules, as well as many others, they are transported by bacteria into the ground, if we are buried, and your aunt, the worm, takes it further, it becomes a link in the chain of life on earth. Every one of them as valuable as the other. No Karma related.
I think Fish of Gold has it better!