Even when it's difficult it's great.
The flying is fun. One of my sempai calls it "heavier than air flights".
I have an excuse for all of the between meal snacking I do. "eh I'll work it off in class tonight/tomorrow. I used up so many calories in class I have to reset my metabolism"
I couldn't go to the gym or whatever because that wouldn't hold my interest long enough to be of any use.
And in a way I also do it because of what Nathan said up there. If I want world peace I should learn to be a bit more relaxed and peaceful myself.