Acharya Prashant explains that the fear of death is not actually a fear of the unknown physical end of the body, but rather a fear of losing what one currently possesses. He clarifies that since no one has experienced their own death, they cannot truly fear it; instead, they fear the cessation of the life they know, which is characterized by temporary and incomplete acquisitions. This fear is centered on the ego, or the 'I' sense, which identifies itself through thoughts, habits, and relationships. The speaker suggests that the remedy for this fear is to find something that cannot be taken away, which begins by deeply accepting the fact that everything one possesses is destined to be lost.