Today, the teachings are available for public with no restrictions or bad consequences (not everywhere). So, the Occult is not that occult any more, maybe just a little

Occultism is a set of practices in order to understand and develop natural powers we have, or can develop (dormant, or latent powers). We do it for different, but very personal reasons.
So, in my understanding, occultism requires knowledge and practice in order to achieve self-realization.
It's not a religion, you should not believe in God(s) or anything paranormal, because it's all about things that human already have or can develop and control.
What is your understanding of Occultism, if you are willing to share?