According to Chapter 22, why is the Sadguru's true nature considered to be beyond full comprehension?

Chapter 22 portrays the Sadguru's true nature as profoundly mysterious and ultimately unknowable. The text asserts that the Guru is the formless essence that existed before creation, the very cause of illusion, and also the one who dispels it. This paradoxical role as both the source of illusion and the revealer of truth makes him incomprehensible. As Chapter 22 states, because of this profound complexity, "the Vedas became silent" and even Shesha, the celestial serpent with countless mouths, "does not know the true reality." The author uses this to express humility, suggesting that if such great authorities cannot grasp the Guru's essence, it is certainly beyond ordinary intellectual understanding.