In the Christian tradition, the triangle represents Faith, Hope and Charity, and the Holy Trinity of Father, Son and Holy Ghost. The symbolism of this shape is always associated with its three sides, signifying a variety of triads such as birth, life and death; heaven, earth and human; mind, body and soul; body, soul and spirit; and father, mother and child.
In ancient Egypt, the triangle combined will, intelligence, and love to represent man's soul. The ancient Egyptians and the Mayans built stepped pyramids with temples at the top to represent the cosmic mountain.