"The Course of the Heart" is a novel by M. John Harrison that explores themes of love, loss, and the complexities of human relationships. The story follows a group of characters as they navigate their emotional landscapes, revealing the intricacies of their connections and the impact of their pasts on their present lives. Set in a surreal and often dreamlike environment, the narrative intertwines elements of fantasy and reality. The characters' journeys reflect their struggles with desire and the search for meaning, ultimately leading to a deeper understanding of themselves and each other.