Everything that moves creates energy. A circle is a symbol of the perseverance and struggle of a self journey which arises and takes life from self determination and passion. Sometimes a small yet brave thought or emotion can trigger a revolution, he force of which can be felt like the beating heart.
The Earth spins in orbit, so does the Sun, the Moon, in fact everything in the universe, has a point of center around which it revolves. This phenomenon has always captured my imagination, and inspired me to somehow capture this motion in stillness.
A circle is nothing but an abstraction of anti-linear rationalization.