This is a symbol that is seen consistently by all. Most people do not know what it means, so it is ignored. It’s on the smallest denomination of the United States currency. It is the All Seeing Eye, the 3rd eye. It’s also known as the Eye of Horus. It references that god sees and watches over everything. It is a major reference to Lucifer. It goes all the way back to Ancient Egypt, where they worshipped Ra and the mystery religion of Babylon. This is a very evil symbol and references the secret ruler of the earth.
You’ll see it used in many ways. Some use it with the eye in a pyramid, made famous by Jay-Z. Some hide one eye and just show the one eye. This sign is quite common. Either way it goes it is a massive symbol with constant reference to satan.