Based on Chapter 26, how is the nature of the Self contrasted with the nature of the physical world?

Chapter 26 draws a sharp contrast between the Self and the physical world. It describes the nature of the Self as 'self-luminous and eternal,' implying it is the ultimate, unchanging reality. In stark opposition, the physical world is portrayed as an 'illusion created by Maya' and a 'play and a marvel of Maya.' The text explains that everything physical, from the Creator Brahma down to a blade of grass, is imagined and has no independent place outside the Self. This chapter teaches that while the world appears real due to ignorance, it is temporary and dissolves upon gaining true knowledge of the eternal Self through the Guru's grace.