Why is holding onto the Sadguru's feet considered so important in the spiritual path?

Chapter 27 beautifully illustrates the profound significance of the Sadguru. Holding firmly to the Guru's feet is not just a physical act of reverence; it is described as being equivalent to bowing to the Trinity of Brahma and others, and even a salutation to the Supreme Brahman itself. The Guru is depicted as a "wish-fulfilling tree of liberation" and an "ocean of self-knowledge." By taking refuge at the Guru's feet, a devotee finds all gods and achieves the merit of visiting all pilgrimage sites in one place. This chapter emphasizes that without the Sadguru, the giver of true grace cannot be found even by searching the three worlds.