I've been working on these designs for awhile now. There are three of them, each representing time and change.
They are based on Gaelic knots, which I really love the tradition and meaning of, and I think they came out very well.
This is the Samsara knot, which has hindu origins as well as gaelic. I thought the concept was nice, and the idea that it shows more of the pattern of life appealed to me. Specifically it shows life, death and birth.