The Interpretation of Dreams the underlying meaning of the dream. During sleep, the unconscious condenses, displaces, and forms representations of the dream content, the latent content of which is often unrecognizable to the individual upon waking. Critics have argued that Freud's theory of dreams requires sexual interpretation. Freud, however, contested this criticism, noting that "the assertion that all dreams require a sexual interpretation, against which critics rage so incessantly, occurs nowhere in my "Interpretation of Dreams." It is not to be found in any of the numerous editions of this book and is in obvious contradiction to other views expressed in it." Freud acknowledged
Dream interpretation waking beliefs and desires. The ancient Sumerians in Mesopotamia have left evidence of dream interpretation dating back to at least 3100 BC. Throughout Mesopotamian history, dreams were always held to be extremely important for divination and Mesopotamian kings paid close attention to them. Gudea, the king of the Sumerian city-state of Lagash (reigned 2144–2124 BC), rebuilt the temple of Ningirsu as the result of a dream in which he was told to do so. The standard Akkadian "Epic of Gilgamesh" contains numerous accounts of the prophetic power of dreams. First, Gilgamesh himself has two dreams foretelling the arrival of Enkidu.