I guess I forgot to come back to this. Most of my path to self discovery came either from dreams or meditation, which may have also caused the dreams. I also read a lot about these kinds of experiences and I am extremely intuitive so I trust my core values completely. Of course there is no absolute way of proving any of my beliefs but I do believe that when God says to have faith these are the kinds of things he/she was referring to, things that can not be proved by any human scientific reasoning.
I do believe that if a there was a need for me to take a form other then human on our planet I could do that if I wanted to in another life. I believe that this would be a very rare circumstance as taking a step back in evolution is, for the most part, counter to the universal plan of moving forward. But again, if the need was there and strong enough, yea, I might make hat decision.
This is just kind of a side story. I had this cat once and she was absolutely the smartest cat I have ever come across. She could open doors and use simple tools to get her toys off of shelves that she just instinctively knew would not support her weight. And you could actually watch this cat think through a problem when she was experiencing a situation that she hadn't dealt with previously. In short this cat was smarter then many small children and maybe even some adults I've met as well.
If ever I had a pet that had lived as a higher life intelligence before, it was her. Of course that proves nothing really but it did add to my own beliefs. I guess when the universe whispers something into my soul ears I usually take that as proof of a reality that most humans have yet to experience in their own lives! And that may be gullible but I would much rather be gullible then end up shocked at some point later!