Do you understand what the meaning behind the pyramid on the dollar bill really is?

Here's the story: http://www.straightdope.com/classics/a5_022.html

". . . the eye and pyramid have links to Freemasonry. The eye, for example, is said to be a symbol of the Great Architect of the Universe, i.e., God. The symbolic significance of the pyramid and the eye were well known to educated folk of the 18th century, and one may argue that the Masons and the designers of the seal were merely drawing on a common fund of symbolic meaning. But what if . . . one pauses pregnantly . . . there's more to it?

"Due to incomplete records, nobody knows exactly how many of the founding fathers were Masons. But there were quite a few, including George Washington, Ben Franklin, and possibly Thomas Jefferson. Franklin and Jefferson were on the committee assigned to design the great seal. This group produced a design calling for, among other things, an all-seeing eye. While the eye was cool, the design otherwise was pretty feeble, and the job wound up getting dumped on the secretary of the Congress, Charles Thomson. Thomson enlisted the aid of Philadelphian William Barton. The two cooked up the scheme we have today, incorporating the all-seeing eye plus a pyramid, because everybody liked the idea of Egyptian symbolism. . . ."

Well the eye is the All Seeing Eye

As for the pyramid it is unfinished to show that the US has not reached it's full potential and the Left side is dark because at time of its creation the West of the USA had not been explored

All I know is about the "all seeing eye".