Akhenaten started a new religion under his new name, breaking away from the polytheism of the Egyptians and focusing on one superior god, who he believed was embodied within the sun. The sculptures featuring this figure, his followers, and their monotheistic worshipping usually include this interesting head pieces. While seemingly a play off of the typical pharaoh garb, depicting royalty, they seem more to me as alien craniums. While I know this is highly incorrect and understand that aliens did not come to earth and inscribe their activities, I like to think of them as the crystal skull people from the last Indiana Jones movie more than I'd really like to know what they were in real life. More fun that way.