An open hose with a hole in the end, and the wind forces its way in. Then the wind is trapped. Against it's will, energy is doing something productive, like the devil in the medival history.
The principle is that nature does something against it's own will and, by self entanglement, produces beauty.

Otto Rossler,
A non practicing medical doctor talking about a brand of mathematical curves call Strange Attractors,
in Chaoes - Making of a new Science