People interpret it in different ways but, to me, Satanism was about loving yourself at the expense of others. In a philosophical sense, it’s actually got little to do with devil worship. Most Satanists believe in doing everything in their power to get what they want out of life. Indulging in desires such as sex, food, and booze is encouraged. It breeds selfishness within you, which is what makes it so dark - for yourself as well as those around you. Putting yourself first all the time, and not caring about others, is lonely.