Acharya Prashant explains the fundamental difference between a philosopher's stone and a Saint, noting that while the stone turns iron into gold, a Saint transforms the seeker into their own likeness. Addressing the fear associated with surrender, he clarifies that every step taken in the right direction changes the individual. One is not the same person after taking a step as they were before. Therefore, projecting future fears from one's current state of mind is futile because the person who will face the future will be different from the person who is afraid today.