Thoroughly read the Joy of Satan website. Doing so will answer many questions.
The goal of Spiritual Satanism is to spiritually empower yourself and obtain powers that humans are supposed to have, like telepathy and healing. The final goal is to complete the Magnum Opus and become a god. Power meditation is key to those goals. The 40 Day Meditation Program is a good place to start with meditation. The 40 Day Meditation Program can be downloaded from Satan's Library.
