This lecture delves into René Girard's concept of mimetic desire, positing that our deepest motivation is not merely the desire to possess, but rather a "metaphysical desire"—the longing to truly "be" and attain a sense of wholeness and independence. This desire, which stems from imitating others and is driven by pride, is framed as our "original sin." It represents an endless chase after an ideal that is ultimately out of reach, resulting in ongoing dissatisfaction and compulsive behaviors. The lecture examines the traits of metaphysical desire—its adaptability, power, deceitfulness, and lack of control—and highlights its widespread impact on various facets of life, including consumer habits, personal relationships, career decisions, and even spiritual practices. In conclusion, the lecture emphasizes that grasping this fundamental aspect of human nature is essential for managing our desires and leading a more genuine life.