Drifting

What does every person do when someone is babbling on about something you don't want to listen to or have to go somewhere they don't want? Drift off, let their mind wonder and in some cases fall asleep. But where do you drift off to and what do you think about? Well it all depends on the person really but where their minds drift off to, they all have it in common. If you haven't guessed it it's something happy, a place, person, thing etc. it's still something happy. I do it all the time. I drift off to the most peaceful places on earth and for me that is running water, open spaces with lush green grass and clear blue skies.