[quote] "..so I have 5 questions:

1: How can I do it again?

Intend it.

2: Is there anyway that I could have flown to Japan immidiately?

You could have intended it.

3: Would my grandparents really be that lazy?

IMO It wasn't your "real Grandparents"- just a pair of impersonating dream characters.

4: Who were the bird people?

Other dream characters. If you want to know more, you could have asked them. Your "Grandparents" too.