Rob B. I have decided to dedicate this article to you.
Every single symbol has a meaning. You don't deny the meaning of number 1 or letter C. So, a good way to think about new symbolism is not denying its meaning; some of these symbols are from thousand of years ago.
The symbols are used as a language. You can use them to communicate something, as subliminal messages, to worship something, for mind control, as a sign of member of some organization, as a salute, and so on.
The real warning is that we are around pagan and occult symbols every day. They use their symbolism on our clothes, books, cars, products, television, movies, music, etc.
We will post more articles, let's keep on studying symbols to understand their effects better.