In Buddhism, there is a famous image known as the Wheel of Life that represents the universe, or more precisely, existence itself. This wheel places desire, anger, and delusion right at its center, represented by a snake, a rooster, and a pig, respectively. The snake and rooster are shown as arising from the mouth of a pig, which indicates that the destructive nature of desire and anger arises due to delusion (ignorance). They're known as the three poisons and are considered the root of all suffering. But these ideas aren't unique to Buddhism. In Sigmund Freud's psychoanalysis, Eros and Thanatos represent the same concepts as the snake and rooster in Buddhism. In fact, desire, symbolized by the snake, and anger, symbolized by the rooster, were among the first forces recognized by psychoanalysis. Freud said that while Eros and Thanatos are innate to all humans, we repress them. He argued that it was this repression that formed the primary source of psychological suffering. I...