How does Chapter 26 describe the relationship between the Self, the world, and ignorance, using the 'rope and snake' analogy?

Chapter 26 presents an advanced philosophical concept regarding the Self and the world. It posits that the nature of the Self is self-luminous and eternal, and everything else, from the Creator Brahma down to a blade of grass, is imagined. The chapter teaches that the entire world-spread has no independent existence outside the Self. The text uses the classic analogy of mistaking a rope for a snake, a garland, or a stick due to ignorance of one's true nature. This illustrates how the visible world is an illusory projection onto the reality of the Self. This illusion, born of nescience, only dissolves with true knowledge, which is granted through the Guru's grace, revealing the non-dual bliss of the Self.