I have to say that when you tour the world obviously the jetlags and different hours and ways of living and traveling a lot of hours in the plane and you wake up in the morning and you're not quite sure where you are and it is very tiring.
In a way song writing can almost be detrimental because suddenly you find an outlet that is a kind of cheating. You don't need to have direct communication. You can say 'I can't describe it to you but I will record it and send it to you.'