Acharya Prashant explains that learning can only occur through two sources: the words and verses of those who have realized the truth, or through direct observation. He emphasizes that everything else is secondary and often futile. Discussing various scriptures, he notes that while the Bhagavad Gita is significant, texts like the Ashtavakra Gita and Avadhuta Gita go further, with the Ribhu Gita representing the ultimate essence by stating that even the universe is unreal in the sense that it exists only because the observer exists.