I've done a number of masks that focus on the idea of metaphysical change. This leads me back to opposites time and time again. And when thinking of opposites, I can't help but feel that it is a circular sort of logic at work in my mind. Thus, colors merge and cause and effect become united.
This is an older piece (from 2002) ... a good one to think about as Winter morphs into Spring and brown turns to green. I sign out today with a quote from Goethe:
"Human life runs its course in the metamorphosis between receiving and giving."