The graduation cap is a Freemason symbol known as the mortarboard I think? It sits sideways on your head as a diamond rather than a square. A diamond (33) is a big Freemason symbol. It signifies that your mind has been molded and sculpted per the greater goals of those who control the education system. This is why when you see celebrities going to graduation ceremonies to get honorary or post grad degrees, they don’t wear this symbol of mockery because they are in the club.