How is the theme of witchcraft important in the novel, Fanny: Being the True History of the Adventures of Fanny Hackabout-Jones?

The book's second major theme is its rehabilitation of witchcraft as a religion in which women are bound to the Goddess for the service of other women.

The novel's witches preserve herbal lore, heal the sick, aid the abused, bring crops to harvest, and — most prominently — understand the birthing of babies. The thematic emphasis on the witchcraft's matriarchal nature provides an alternate vision of the philosophy, science and society that might follow from the worship of a goddess of life.