"We are no longer supplicating weaklings trembling before an unmerciful "God" who cares not whether we live or die." - Anton LaVey

Satanism encourages its followers to indulge in their natural desires. Only by doing so can you be a completely satisfied person with no frustrations which can be harmful to yourself and others around you. Therefore, the most simplified description of the Satanic belief is: indulgence instead of abstinence.

So long as a man knows the meaning of fear, he will need the ways and means to defend himself against that fear.

We don't worship Satan, we worship ourselves using the metaphorical representation of the qualities of Satan. Satan is the name used by Judeo-Christians for that force of individuality and pride within us. But the force itself has been called by many names.We embrace Christian myths of Satan and Lucifer, along with Satanic renderings in Greek, Roman, Islamic, Sumerian, Syrian, Phrygian, Egyptian, Chinese or Hindu mythologies, to name but a few. We are not limited to one deity, but encompass all the expressions of the accuser or the one who advocates free thought and rational alternatives by whatever name he is called in a particular time and land. It so happens that we are living in a culture that is predominantly Judeo-Christian, so we emphasize Satan. If we were living in Roman times, the central figure, perhaps the title of our religion, would be different. But the name would be expressing and communicating the same thing. It's all context.