Acharya Prashant addresses a question from a student who wants to join the defense services but is being discouraged by family members who prioritize safety and material comfort. He explains that such discouragement stems from a fundamental misunderstanding of the self. When people define themselves solely as a physical body, their life's purpose becomes limited to physical gratification and security. However, the body is a biological machine and a perishable item with an expiry date. True joy and suffering are mental and relate to consciousness, not the physical form. Therefore, defining oneself as merely a body is not only incorrect but actively harmful, as it condemns one to a wasted life focused on securing something destined to disintegrate.