The Ouroboros, first discovered in the Enigmatic Book of the Netherworld, in the egyptian tomb of King Tut, was accompanied by the words "all is one".  In Norse Mythology, it was thought if the "world serpent" ever let go of it's tail it would start the end of days.
The symbol itself represents the cycle fo life, periodic renewal, and boundless time. Use this piece for meditations on change, to get through difficult transitions, to take joy in any new situation you find yourself in.