cyclic universe?

I have recently been pondering the cyclic nature of…well, Nature, and the universe, in the hope of reaching some understanding of the metaphysical levels beneath them. That cycles act in a ‘predicatable’ way, if understood, could offer some insight into the regularity of nature, and provide some kind of uniformity primciple. Also, should the ‘self-organisation’ of the universe’s cycles be understood teleologically?
Any thoughts?