This article discusses the central role of dreaming in the life and fiction of the American writer H. P. Lovecraft (1890-1937). Many of Lovecraft’s stories were directly inspired by his own personal dreams and nightmares. Lovecraft was not particularly well known during his lifetime, but his reputation as a master of short horror fiction has cast enormous influence on the fantasy and science fiction genres for many decades. Almost all of his stories create a “dreamy” atmosphere of uncertainty, mystery, and potential danger, and several of them use dreams as key elements in the plot. The article suggests that Lovecraft was a big dreamer who cultivated metacognitive skills for exploring and writing about the mystical and gravitational dimensions of prototypical dreaming.