From What I can tell... you see everything in between lives. When you decide to have another go, you picked your circumstances - and away you go! Time isn't "real" and only exist in our current rule-set. So, you could pick whatever life that would have the lessons that you currently need to learn. And, then you go for it! But in between, i'm sure we can fly around and do all sorts of fun stuff. It's up to us when/how we want to come back.