Det kan väl inte vara så svårt att googla själv? I referenserna till wikipedias "United States one-dollar bill" hittar man
den här länken där man kan läsa:
The Eye of God is an equilateral triangle with a single eye inside it and almost always with rays emanating from it.
It symbolizes the omnipresence and omniscience of God, who watches over all things. It is also associated with the Trinity (which the triangle symbolizes in itself).
Pyramiden sägs av många vara en frimurarorder-symbol, som tydligen hade ett någorlunda stark fäste hos "the founding fathers". På dollarsedlen symboliserar den också ett "undertaking", wikipedia:
At the top of the seal stands a Latin phrase, "ANNUIT COEPTIS," meaning "He (God) favors our undertaking."