Answer:
instinct
Step-by-step explanation:
Sigmund Freud identifies two main drives that regulate and motivate behavior, Eros, and Thanatos.
They are the equivalents for drive to live and drive to die. They shape the later emotions, thoughts, and actions that form human experience.
He sees energy created by life will be called libido, proposedly to oppose the force of the ego, which constantly mediates our desires.
He writes, in Beyond the Pleasure Principle, Sigmund Freud Eros as the life instinct, including all relating to sexuality and the opposing Thanatos, referred to as a death instinct.