The symbol is a unalome, a representation of the journey to reach enlightenment. The path starts in the centre of the spiral, and as you continue up or down this path you are wandering, becoming more conscious of your surroundings.
"its an enso -- it represents a journey.-- the buddhist monks draw these with brushes in journals; an open enso signifies an ongoing journey!" Circle Of Life Enso tattoo. Zen Buddhist symbol of enlightenment, clarity, balance and life.