How does the author describe the qualities and role of the Sadguru at the beginning of Chapter 18?

At the start of Chapter 18, the author offers a series of victorious salutations to the Sadguru, describing him as the supreme Eternal one and the very Truth of Brahman. The text explains that the Guru, as the "Ruler of Maya," shows the world to be an illusion through direct experience. He is praised as being beginningless, endless, and without blemish. The chapter highlights the Guru's unique ability to effortlessly point out the Unperceivable One, which even the Vedas and Shrutis debate endlessly, making him the ultimate teacher of the knowledge of the Self.