I love preparing for a trip - editing down my possessions and wardrobe to only the most necessary or comforting. Planning ahead. Counting down.
I love airports - being transient and self-contained. (And the people-watching is excellent.)
I love being aerial - it's like being suspended outside of time. For an hour or two, you're exempt from a lot of your day-to-day responsibilities. You can't do much on a plane, save listen to music, read, or gaze out the window and enjoy the perspective, the present moment.
Or you can sneak some photos after the stewardess has told everyone to turn off all electronics.