Acharya Prashant explains the process of cleansing the mirror of the mind, as suggested by Kabir Saheb. He emphasizes that one must remain humble and cautious while attempting this cleansing, acknowledging that one's own confused state might inadvertently make the mirror dirtier. The key to knowing if the cleansing is successful lies in the quality of one's consciousness. Just as a person knows when they have woken up from sleep, a deepening consciousness brings something entirely new into one's life. He distinguishes between the state of dreaming and true awakening by noting that dreams only offer stale, old information, whereas true awareness reveals the unprecedented. He further describes that as the mirror is cleaned, one begins to peel back the layers of the self. The first realization is often shocking, as one encounters their deep-seated tendencies and instincts, which may appear uglier or more fearful than imagined. However, if one persists beyond this stage, they encounter their final, formless nature. This ultimate realization is so profound that the individual self dissolves entirely. Acharya Prashant concludes that the validity of this spiritual mirror is proven only when it shows you something you have never seen before; if it continues to show the same familiar, everyday face, it is not the mirror Kabir Saheb spoke of.