Describe the philosophy and state of being that characterized Sai Baba as the 'Lord of Yoga'.

The text describes Sai as the "Lord of Yoga" who, like the great saint Ramdas, appeared on the banks of the Godavari river for the world's upliftment. Chapter 4 explains that his state of being was centered on the realization of oneness, a philosophy where the feeling of duality is discarded. In this state, everything, both moving and unmoving, is recognized as Brahman by nature. This leads to the profound realization that "I am everything," which brings supreme devotion and a happiness beyond description. When this "I-ness" is achieved, as Chapter 4 notes, there is no room for enmity or fear, as nothing is perceived as separate from the self.