Pythagoras gained a lot of his insight and direction from the Egyptians. One of the most important Pythagorean symbols was the tetractys. It is a pyramid shaped symbol made up of the first four whole numbers. One was for unity. Two was the dyad, the first principle of dichotomy. Three was the symbol of beginnings, middle and end(the process of things in time and space) and fourth was the number of points that it took to construct a pyramid. Togehter these numbers add up to ten which is the perfect number and basis for all of his system and ours.
"I swear by the discover of the tetractys, which is the spring of all wisdom, the perennial fount and root of nature."
If this came from the Egyptians belief system then perhaps we have some more insight into the nature and symbolism of the pyramids.
