Acharya Prashant explains that fear, specifically the fear of sexual impotence, arises from a lack of self-knowledge. When an individual does not know their true identity, they construct a self-image based on worldly standards, social expectations, and media portrayals. This borrowed identity is often idealized and impossible to live up to, leading to feelings of inferiority and constant guilt. He notes that the world is obsessed with sexual performance, turning a natural bodily function into a test of personal worth and a source of deep-seated anxiety.