This is taken from an earlier Neolithic design, this pattern re- occurs in the 8th Century using the triskele (the heart, the soul and the mind) echoing the patterns used in the Neolithic tombs outside New Grange in 5000BC, and even dating to pre-celtic times, and held in between the later forms of the triquetra , it evokes a protectorant from Mother Earth, earth, air and water. Or Triple Goddess . Held within a circle, a very powerful bonding symbol of completeness.