According to the poet Elias Canetti, "All the things one has forgotten / scream for help in dreams." To the ancient Egyptians they were prophecies, and in world folklore they have often marked visitations from the dead. For Freud they were expressions of "wish fulfillment," and for Jung, symbolic representations of mythical archetypes. Although there is still much disagreement about the significance and function of dreams, they seem to serve as a barometer of current mind and body states.

In this volume, Deirdre Barrett brings together the study of dreams and the psychology of...