Fully Illustrated Guide to the non-Christian Symbols of Western Occultism from prehistoric images to the modern Earth-centered movement. Much of Western occultism is focused on the Judeo-Christian mysticism practised in Medieval and Renaissance Europe with its emphasis on the conjuration of spirits by the magician. From the seventeenth century onwards, the knowledge derived from scientific experimentation eroded the spiritual influence of the church. Sigils are symbol used in magic. A sigil refers to a symbolic representation of the users wished for outcome.