Acharya Prashant explains that the human body is naturally configured for physical desires and survival, not for liberation. He points out that while the body requires food, water, and air to function, it does not feel a physical lack if liberation is not achieved. He emphasizes that the attraction towards the opposite sex is a biological and chemical process, similar to how the nose breathes or the stomach demands food. The body is designed with specific organs and hormonal systems that drive these behaviors, and it is a natural function of the physical form one is born with.