Shri Swami Smaratha comes from the age-old guru tradition of the Dattatreya sampradaya. Also a different form of famous Nath Sampradaya. The main chanting mantra of this tradition is : गुरुर्ब्रम्हा गुरुर्विष्णु गुरुर्देवो महेश्वराः | गुरुः साक्षात्परब्रम्ह तस्मै श्रीगुरवे नमः || Shri Swami Samartha is believed to be the incarnation of Shri Narasimha Saraswati, who in turn is the believed incarnation of Shri Shripad Shrivallabha. Although not much is known about Shri Shripad Shrivallabha, the life story of Shri Narasimha Saraswati is well documented. The biography of Shrimad Nrusimha Saraswati in "Shree Gurucharitra", gives us the details of his work in guiding the devotees and the various miracles he performed to help the devotees. He stayed at Ganagapur (Karnataka State, Southern India) for a long time and then gave his "Nirguna Padukas" to his disciples and devotees, before leaving for the Kardali forests to perform Tapas [penance].
The early life of Swami Samarth like that of Shri Shirdi Sai Baba is shrouded with mystery. For that matter, even Shri Shirdi Sai Baba's advent and early life has not been established. Yet it does not really matter for those who have faith in Him and continue to experience his benevolence in different ways. Shri Narasimha Saraswati, about four centuries before the advent of Swami Samarth is believed to be the earlier incarnation of Shri Dattatreya. The 'Guru Charitra' one of the most famous books gives lot of information about Him. As per the most popular belief, Shri Narasimha Swami, after helping and spiritually uplifting a large number of people over a few decades, went away to the Himalayas for penance and went into Samadhi. In the Samadhi state He remained for about three hundred years. With the passage of time a huge anthill grew over him and he was lost to the outside world. One day accidentally a woodcutter’s axe fell on the bushes grown around the ant hill. He was shocked to find blood stains on the blade of the axe. He cleared the anthill and Lo, he found a Yogi in meditation. The Yogi slowly opened his eyes and consoled the dumbfounded woodcutter saying that it was the Divine Will for Him to re-appear in the world to resume His mission. This Yogi, in his new role came to be known as Swami Samarth. Prior to his settlement at Akkalkot, Swami Samarth seems to have visited far and wide. While moving in the Himalayan region he visited places like Puri, Benaras, Hardwar, Girnar, Kathiawad and Rameswaram in the South. He also stayed at Mangalvedha, a town near Pandharpur in Solapur district Maharashtra, which had been inhabited earlier by famous saints like Domojipant and Chokhamela. He came to Akkalkot in 1856 where he continued his physical existence for 22 years. He came to Akkalkot on the invitation of one Chintopant Tol and stayed at a place on the outskirts of the town.