The Lughnasadh Celtic Spiral design on t-shirts and gifts! Lughnasadh is the celebration of the height of the Summer and it's power of life, vitality and light. It is therefore named for the Celtic sun god Lugh, the Samildanach or many gifted. The double spiral disc represents duality, the spirit world and the world of the living, opposite states of being. The triple discs represent the presence and nature of the divine. The number of discs in the outer circumference represents the soul in relation to time and place, and the surrounding outer spiral represents completion and wholeness.