The symbol features three hares or rabbits chasing each other in a circle. Like the triskelion, the triquetra, and their antecedents (e.g., the triple spiral), the symbol of the three hares has a threefold rotational symmetry. Each of the ears is shared by two hares, so that only three ears are shown. Although its meaning is apparently not explained in contemporary written sources from any of the medieval cultures where it is found, it is thought to have a range of symbolic or mystical associations with fertility and the lunar cycle. When used in Christian churches, it is presumed to be a symbol of the Trinity. Its origins and original significance are uncertain, as are the reasons why it appears in such diverse locations.