In the Celtic Lore of the soul, each individual is made up of a great many parts which together form the total and complete living being. Each person is made up of spiritual and phyisical elements. The multiverse in all of its diversity is reflected when you look at the substances in the body. Both multiverse and humans consist of gasses, solids and liquids. As well as the soul and all the energy it creates. The Ancient Celts did not catagerise this as the greeks did; IE: Earth, fire, air, and water, but used much older traditions. Here are those elements.