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.
The symbol of the moon is to state your universal intention to use your intuition. The crescent moon symbolises new beginnings and the making of dreams into reality. Because of this cyclic nature the moon it is also connected to rebirth.