Freud named the most primitive part of the personality the id, which is a latin word that means

Freud named the most primitive part of the personality the id, which is a Latin word that means it.
It is the unconscious part of our brain that dictates what we want to do, regardless of the consequences. The best explanation for id would be "If it feels good, do it." Here are some of the actions that id dictates - hunger, thirst, self-reservation, and sex drive.