Accroding to the Sai devotees "OM Sai Ram" are very powerful Words. Sai Baba of Shirdi also known as Shirdi Sai Baba, was a spiritual master who was and is regarded by his devotees as a saint, fakir, avatar (an incarnation of God), or sadguru, according to their individual proclivities and beliefs. He was revered by both his Muslim and Hindu devotees, and during, as well as after, his life on earth it remained uncertain if he was a Muslim or Hindu himself. This however was of no consequence to Sai Baba himself. Sai Baba stressed the importance of surrender to the guidance of the true Sadguru or Murshad. Sai Baba's disciples and devotees claim that he performed many miracles such as bilocation, levitation, mindreading, materialisation, exorcisms, making the river Yamuna, entering a state of Samādhi at will, lighting lamps with water, removing his limbs or intestines and sticking them back to his body (khandana yoga), curing the incurably sick, appearing beaten when another was beaten, preventing a mosque from falling down on people, and helping his devotees in a miraculous way. He also gave Darshan (vision) to people in the form of Rama, Krishna, Vithoba and many other gods depending on the faith of devotees.