According to the source, what specific spiritual benefits can a devotee obtain by interacting with Sai Baba in Shirdi?

Chapter 4 outlines several specific spiritual benefits that a devotee could gain from their association with Sai Baba. The text explains that the mere sight, or Darshan, of him is considered a complete Yoga practice in itself. Engaging in conversation with him is believed to wash away all sins. The act of massaging his feet is equated to the purifying experience of bathing in the sacred Triveni river confluence. Furthermore, partaking of his foot-nectar, or Tirtha, is said to uproot worldly desires, while receiving his Udi-Prasad is described as a holy and sanctifying act. His commands were considered as authoritative as Vedic words.