The Irish Celtic Longevity Knot. the symbolism behind their knots was connected to what 'not' to do. The Celts were famous for their ability to foresee via remote viewing they called scrying, and the person who had the 'second sight' ability was fey.
Celtic Knot of Discovery-Book of Kells -Babylon -Symbol of Discovery
Cloverleaf Triquetra - Wood Carved Celtic Knot- Rest After Completion MEANING: A variation of the original Triquetra Knot that represents the Aspects of the ancient Celtic Goddess and later, the Christian Trinity.