The current issue – number 184 – of Fortean Times is well worth a purchase with an informative multi-page article about the influences on Lovecraft’s fiction.

Aleister Crowley, Kenneth Grant and the Church of Satan are mentioned in passing.

Dreamer of the Dark
H P Lovecraft’s weird fiction is filled with occult references and supernatural incidents, but did he actually believe in the paranormal? Daniel Harms explores the contradictory world of the 20th century’s master of horror.