Why does Plato refer to the human body as a coffin of the soul?

Plato refers to the human body as a "coffin of the soul" to emphasize his belief that the soul is immortal and the body is merely a temporary vessel. He suggests that the body restricts the soul's true potential and knowledge, acting as a barrier to the pursuit of philosophical wisdom and enlightenment. By viewing the body in this way, Plato underscores the importance of looking beyond physical desires and pleasures to focus on the eternal and transcendent nature of the soul.