Eternal Recurrence, Eternal Return. The snake swallowing its own tail. Eternal Recurrence is “a theory that the universe and all existence and energy has been recurring, and will continue to recur, in a self-similar form an infinite number of times across infinite time or space.” (“Eternal Return,” n.d.)
The phrase, “there is nothing new under the sun” seems to fit well with this theory. Also, the idea of “lost knowledge”, that which had been known before, that will be known again.
The divine incarnation, Jesus (and possibly others), may also follow this cycle; bringing this great work to completion by being born again. Possibly coming again under a different flavor; the same thing, yet slightly different; a full Krishna,