Acharya Prashant addresses the common belief in ghosts and spirits, dismissing the argument that not experiencing something doesn't mean it doesn't exist. He uses the analogy of a 'square circle' to explain that some things are logical impossibilities based on their very definitions. Since ghosts are defined in relation to the physical body and space, they must adhere to the laws of physics. He asserts that the human eye is designed only to see material objects through reflected light; therefore, if a ghost were visible, it would have to be a material entity subject to physical forces like bullets, chemicals, or temperature changes. He clarifies that anything perceived through the senses is inherently material and not supernatural. He further explains that spirituality is about calming the mind and attaining liberation from identification with material states, rather than filling the mind with mystical or magical thoughts. Acharya Prashant critiques the use of fear and 'divine experiences' as tools for dominance and exploitation by fraudulent gurus. He notes that even educated individuals fall for such superstitions due to deep-seated internal fear and a lack of true self-knowledge. True spirituality, he emphasizes, is rooted in the understanding that the world is an illusion and only the ultimate truth is real, leaving no room for the existence of ghosts. He concludes that liberation comes from questioning, using one's intellect, and moving away from personality cults and propaganda.