Contemplation of one's navel as an aid to meditation. From the Greek: omphalos (navel) + skepsis. The word has several other forms, such as omphaloskeptic, for someone who engages in navel-gazing, and omphaloskeptical, meaning to be in a self-absorbed state.
http://en.wikipedia.org/wiki/Omphaloskepsis (thanks, bri)
