History of the Celts: Modern Day Celtic Symbolism and Celtic Art: There is a collection of Celtic motifs that have been adopted today as symbolic of the different Celtic national identities, including: Wales, Scotland, the Isle of Man, Brittany, and Cornwall. One such symbol is the Triqueta knot, also known as the Trinity Knot. Although there is no concrete knowledge of the meaning of certain Celtic knots, a basic interpretation is that they represent the crossing of the spiritual path with the physical path. Knot work is also said by many to mean eternity or the vast continuum.

Spirals are also a commonly well-know Celtic art motif and date back from 2,500 B.C. Cosmic symbolism abounds in a spiral design, which is a microcosm for other designs in nature: seashells, the whirlpool, the galaxy. These most particularly were used as adornments in the Celtic Iron Age. Along with knot work, spirals have become symbols of the modern Celtic art movement, and are often found, in jewelry patterning as well as large stone crosses, known in Ireland as "High Crosses."