The Triquetra is an ancient protective symbol, also known as the “Trinity knot,” and used since the Bronze Age in Europe and some Asian countries. The meaning of the Triquetra is “Three corners.” This is a symbol of Celtic origin, which is focused on the number 3. The Celtic cosmology consists of three realms viz, the Earth, the Sea, and the Sky. Taken spiritually, it is considered as the three states of the body viz, physical, mental and spiritual (MIND , BODY AND SOUL)