He, the infinite and the absolute, incarnates himself and descends to earth from time to time to vanquish evil (imbalance/ignorance), re-establish the divinity and uphold the cosmic principles. He has made himself perceptible as lord Krishna, Gautam Buddha, Jesus Christ, Hazrat Mohammad, Guru Nanak, and many more divine masters and eventually, various religions have also come into being. To merge all these religions into one, he has then manifested himself as sai and evinced the ultimate truth. We are one, God is one. - Lord Shirdi Sai Baba.