The flag, each star being a place where it is possible to live. If you can just remember who all your relatives were (going back as far as you can, using paper or microfilm notes if you'd like), you'll be allowed to bring them with you when you go there. You'll appreciate the help, since those planets are a bit wild, and you'll be chopping ferns and milking dinosaurs for sometime, at least until you can get some sort of economy going.
At the end of the day, every night in the trailer park, the bees told me about the new world where they had settled and formed a nation.