Spiritual Satanism is the same as ancient Paganism. It has nothing to do with sacrifices, "evil" and all that poop. We don't worship a horned monster... We worship a Nordic God who has been terribly blasphemed and distorted because of the christian, muslim and judaic religions.
Satan has also been known as "Enki" in ancient Sumeria, "Poseidon" (Neptune) and "Dionysus" in ancient Greece, "Shiva" in ancient India and so forth. You can find more information about Him and about spiritual Satanism on
http://joyofsatan.org
For any questions you might have (or if you wish to read other people's points of view) you can also check our forums:
https://ancient-forums.com/