According to the salutations in Chapter 22, what is the supreme and unknowable nature of the Sadguru?

The invocations in Chapter 22 portray the Sadguru, Sainath, as the supreme and ultimate reality, whose nature is beyond human comprehension. He is hailed as the "embodiment of bliss," the "supreme purifier," and the "destroyer of the fear of worldly existence." The chapter emphasizes this unknowable quality by stating that because of His greatness, "the Vedas became silent" and "even Shesha (the celestial serpent) does not know the true reality." The Sadguru is described as the formless one who existed before creation and also the cause of the illusion that makes the world appear, a nature devoid of being and non-being.