Celtic tree of life is a representation harmony and balance in nature. The Tree of Life, to the Celts, symbolized strength, a long life, and wisdom. … The Celts also believed that they actually came from trees, and considered them magical, living beings. The triskele can be thought to represent motion in the way that all three arms are positioned to make it appear as if it is moving in an outward motion from its center. Movement, or motion, is believed to signify energies, in particular within the triskele the motion of action, cycles, progress, revolution and competition. Other significant meanings of the triskele include: life-death-rebirth, spirit-mind-body, mother-father-child, past-present-future, power-intellect-love and creation-preservation-destruction to name but a few.