I am a strong believer in eternal life and re-incarnation.
For many years I have joked about how life on earth arrived. I said that it must have been some high developed civilization, that spread enzymes, proteins and dna unto a planet ready for evolution. The enzymes, proteins and dna were designed to create nature as we see it. The civilization died, and the universe forgot all about us.
Well, it might be that my wild joke could be closer to the truth, than so many other theories.
Read this article about dna possibly being intelligently designed: