The so-called flying is a flowing and rhythmic movement sequence, which is performed for training purposes over a longer period of time.

It is the basis for the backstroke, the heart of Kahuna bodywork and conveys the rhythm and flow of the same.

It has its roots in hula and lua (Hawaiian martial arts).
Sequences of movements like these have been used in the South Pacific for centuries to refine the senses and as endurance training – including by Hawaiian navigators who could navigate accurately over thousands of nautical miles using only their senses.