Pleasure

Pleasure is a result of a decrease in stimuli ( something external that influences an activity),for example, a calm environment the body enters after having been subjected to a hectic environment. If pleasure increases as stimuli decreases, then the ultimate experience of pleasure for Freud would be zero stimulus, or death. Given this proposition, Freud acknowledges the tendency for the unconscious to repeat unpleasurable experiences in order to desensitize, or deaden, the body. This compulsion to repeat unpleasurable experiences explains why traumatic nightmares occur in dreams, as nightmares seem to contradict Freud's earlier conception of dreams purely as a site of pleasure, fantasy, and desire.

Freud believed that humans were driven by two conflicting central desires: the life drive (Eros) (incorporating the sex drive) and the death drive (Thanatos). Freud's description of Eros, whose energy is known as libido, included all creative, life-producing drives. The death drive (or death instinct), whose energy is known as mortido, represented an urge inherent in all living things to return to a state of calm: in other words, an inorganic or dead state.Freud approaches the paradox between the life drives and the death drives by defining pleasure and unpleasure. According to Freud, unpleasure refers to stimulus that the body receives.On the one hand, the life drives promote survival by avoiding extreme unpleasure and any threat to life. On the other hand, the death drive functions simultaneously toward extreme pleasure, which leads to death.

"The goal of all life is death."
Sigmund Freud