Acharya Prashant explains that spirituality is not about believing in a divine power or a specific deity; rather, it is the profound process of knowing oneself. He clarifies that the term 'Adhyatma' literally means 'knowing the self' or 'knowing the I' deeply. He emphasizes that the 'I' or the ego is the root cause of all human suffering. Problems exist only because they are attached to this 'I'. He argues that the ego is so skilled at creating misery that it can turn even something pure into poison. Therefore, the real problem is not external circumstances but the one who experiences the problem—the ego itself. He further distinguishes between the material, the mental, and the mystical. He points out a common error where people mistake mental constructs, such as thoughts, imaginations, and even the concept of God, for mystical or spiritual truths. Acharya Prashant asserts that anything that can be thought of, imagined, or described is still within the realm of the mind and the ego's 'protected circle'. True spirituality, or Truth, lies beyond the mind and cannot be captured by thoughts or stories. He notes that both theism and atheism are merely mental positions within the ego's domain, and neither leads to the Truth because both are based on beliefs rather than direct inquiry. Finally, Acharya Prashant describes the ego as a 'ghost' that exists only in ignorance and darkness. Just as a ghost in the fog disappears as one approaches it, the ego dissolves as one investigates it through rigorous inquiry. He explains that people often resist spirituality because they fear this dissolution of their self-identity. He concludes that spirituality is about moving beyond the petty debates of theism and atheism to realize that which is immortal and cannot be destroyed, shifting from a life of suffering to one of truth.