Analytic cases, poetry, literature, painting, anthropology, and colloquialisms are cited to show that oral sadistic conflicts are repressed in stone symbols and that stone representations symbolize teeth. Stone representations in dreams, such as rocks, boulders, monoliths, rocky reefs, caves, and stone towers and buildings, often symbolize penis dentata and vagina dentata conflicts. The ontogenetic phase when stone symbolism is first utilized by the ego is reconstructed and dated at the time of weaning.