So, wait, if I believe I'm going to be reincarnated as a mermaid... or a dragon... or... your mom... wow. Epic.
JonThompsonsEmail
I think that it would have to be the people don't KNOW that this is the case while alive. Otherwise its highly abusable. Its just that when you die, it turns out you were right (at least about yourself).
bryan.derksen
I think we can assume that your mind doesn't change, otherwise it would be hard to keep making wishes (or the last couple of wishes would always be for tasty grass, which is boring).