Pewter Brooch in Celtic Knotwork design with centre stone. Legend: The simple, yet profound, beauty of the unbroken line. forming delicately complex patterns of weaves and knots, perfect in their symmetry, permeates all of the great achievements of Celtic art. The interlacing lines of the Celtic Knot stand for "no beginning, no ending," the continuity of everlasting love and binding together or intertwining of two souls or spirits. Christianity has embraced much of the ancient Celtic symbolism and had adapted many Celtic Knots into high crosses and illuminated manuscripts.