“For example, to worry about something outside of yourself means to forget the self. This is itself a pleasant state of consciousness. Not having anything outside yourself to arouse your interest, excitement, or worry means that you are dumped right in the lap of your own self-consciousness, which can be the most miserable emotional state.
“Perhaps we should, therefore, redefine happiness as experiencing real emotions over real problems and real tasks.”
-Abraham Maslow, Future Visions: Unfinished Papers