Acharya Prashant explains that the necessity for yoga arises because human beings are fundamentally not at peace with themselves. While modern advancements in medical science and technology have significantly improved physical health and longevity, the human mind remains deeply troubled and dissatisfied. He argues that the popular conception of yoga as merely physical exercise or stretching is a misconception. True yoga is of the mind, as the mind is the source of all suffering and agitation. Physical health is merely a byproduct of a well-ordered mind; when the mind is aligned with what is right, the body naturally follows as a healthy vehicle for one's life purpose.