Auroboros are commonly used as markers of the perpetual cycle. Desire followed by effort and achievement will enter the stage of neglect. This cycle will always repeat, bringing with it the effect of a snowball, which keeps getting bigger, then small again, then getting bigger, and never stops, until our death.
This cycle of increasing and decreasing will always be passed on to the next human to continue on to the next achievement. Human is doing more and more powerful things than ever before.
I think that actually this is the naked nature of human beings which has been inherited from humans before, before humans, before everything existed, and after destiny was written. until...? We never know.