What is the significance of Sadguru Sainath's big toe as described in Chapter 22?

Chapter 22 highlights the divine greatness of the Sadguru's big toe through a specific event involving Das Ganu. When Das Ganu expressed a desire to bathe in the holy waters of Prayag, Baba instructed him, "Know this big toe of Mine to be Prayag; bathe right here." As detailed in the chapter, when Das Ganu placed his head on Baba's feet in faith, the waters of both the Ganga and Yamuna miraculously manifested from that very spot. This event satisfied Das Ganu and demonstrated that the Sadguru's feet are the confluence of holy rivers, with the big toe becoming Venimadhav Himself.