The Tree of Life was an important symbol in ancient Celtic culture. When Celtic towns were settled, a single tree would be left in the centre and would be known as the Tree of Life. Celts believed that trees were gateways to other worlds, including the afterlife. The symbol of the tree is a continuous, interlaced design, never-ending and never-beginning in order to represent eternity.
The Trinity Knot is one of the most recognisable Celtic designs. The knot is believed to have been fashioned by the Celtic Christian Church to represent the holy trinity of the Father, Son and Holy Ghost. Depictions of The Trinity Knot can be found on Celtic artefacts dating back to the 8th Century, including the Book of Kells. Comprising of three interlaced loops, it is commonly used as a symbol of consistency and eternity.