Acharya Prashant explains that an attitude cannot change itself because it is a material, mechanical, and dead thing, much like a fan that cannot repair itself. He emphasizes that change does not come from determination, resolution, or a sense of morality, but solely from understanding. Using Newton's first law of motion as an analogy, he points out that material habits and attitudes will continue in their current state unless acted upon by something outside of them. This external force is human intelligence and attention, rather than the will or ego.