Sigmund Freud's Personality Theory: Id

In Freud's theory, the id is the first of the three elements of personality. It is the personality of a newborn child. Ego and superego are developed later on. Id is the Latin word for the word "it". The id is basically instinct. It is impulsive and unconscious. The id goes according to its pleasure principles. Pleasure principles basically are avoiding painful things and aiming towards pleasurable things. The id wants its desires to be fulfilled immediately regardless of what the consequences may be. The desires aim to fulfill biological urges such as hunger. Sometimes to relieve the tension that can be caused by not fulfilling the pleasure principle, the id forms a mental picture of  the thing it wants in order to satisfy its need at that time. I believe in this theory strongly. Everyone has this instinct when they were younger. Based on my observations in the world, I believe that the id part of the human personality stays dominant until the person is around the ages of five and seven. As a person grow's up, they're able to control it more.

The id represents instinct. The id will do anything to reach what it aims for.