Theomagia

Theomagia, also known as The Temple of Wisdom, is a book published in 1664 on geomancy and astrology by John Heydon. It reframes geomancy in terms of spirits and angels. It's implied that some of the associations made used partial possession or trance states. It's from this book that we get the alphabet of the genii (book III, ch XIX, p 123).