What I like best about mandalas is that they are circular, yet almost fractal in design. Our brains are literally deflated spheres. Our thoughts take circular paths until they resonate. Our voices, and interactions, resonate through the minds of others, and on and on, until indiscernible echoes find their way across the globe, and even back to us. We contain echoes of the past, and create echoes into the future. And by "we", I mean everything, not just humans. All of these are patterns in the flow of energy. Every flow has life in it, whether that is a camp fire, or the aurora, or the flow of galaxies across the universe.