The typical Celtic cross is decorated with a circle and symbolizes the bridge to other worlds to greater wisdom. The two axes are to symbolize the bridge with the vertical axis representing the spiritual world and the horizontal axis the physical world. The Celtic cross (known in many countries as the wheel cross) is known all over the world, and yet at home on the Emerald Isle, everywhere you come across these wonderful mystical crosses.
The Celtic knot, also known as the Trinity knot, has been in Irish representations since the 6th century. The basic form is an equilateral triangle, only here the knots are interwoven, which are bent into each other to false corners. The knot symbolises the Trinity God the Father (creator of the world), Jesus the Son of God (world redeemer) and the Holy Spirit (sustainer of the world). The inseparability of unity is symbolized by the intertwined form and the connecting circles. In addition, the Celtic knot is supposed to help its wearer to realize dreams.