Based on the provided text, what is the importance of the Guru's feet for a devotee seeking happiness and fulfillment?

According to the teachings in Chapter 22, the Sadguru's feet are of paramount importance, described as the only path to achieving "absolute fulfillment of happiness." The chapter notes that many devotees come for a vision of Baba and find joy by placing their heads at His feet, where they "plunder personal happiness with love." Furthermore, Chapter 22 highlights the miraculous power of the feet through the story of Das Ganu, where Baba declares his big toe to be the holy pilgrimage site of Prayag, and the holy rivers Ganga and Yamuna subsequently flow from it. This emphasizes that for a devotee, the Guru's feet are the ultimate source of blessing and fulfillment.