Sumatinatha was the fifth Jain Tirthankar of the present age (Avasarpini). According to Jain beliefs, he became a siddha, a liberated soul which has destroyed all of its karma.
Sumatinath was born to Megh Raja and Mangala Rani at Ayodhya in the Ikshvaku clan. His birth date was the eighth day of the Vaishakh shukla month of the Indian calendar.
Jainism rejects the idea of a creator deity that could be responsible for the manifestation, creation, or maintenance of this universe. According to Jain doctrine, the universe and its constituents (soul, matter, space, time, and principles of motion) have always existed. All the constituents and actions are governed by universal natural laws and an immaterial entity like God cannot create a material entity like the universe. Jainism offers an elaborate cosmology, including heavenly beings (devas), but these beings are not viewed as creators; they are subject to suffering and change like all other living beings, and must eventually die.
Jains define godliness as the inherent quality of any soul characterizing infinite bliss, infinite power, Perfect knowledge and Perfect peace. However, these qualities of a soul are subdued due to karmas of the soul. One who achieves this state of soul through right belief, right knowledge and right conduct can be termed as god. This perfection of soul is called Kaivalya or Bodhi. A god thus becomes a liberated soul- liberated of miseries, cycles of rebirth, world, karmas and finally liberated of body as well. This is called nirvana or moksha.
If godliness is defined as the state of having freed one's soul from karmas and the attainment of enlightenment/Nirvana and a god as one who exists in such a state, then those who have achieved such a state can be termed gods/Tirthankara. Thus, Rishabha was god/Tirthankara but he was not the only Tirthankara; there were many other Tirthankara. However, the quality of godliness is one and the same in all of them. Thus, Jainism can be defined as polytheist, monotheist, nontheist, transtheist or atheist, depending on one's definition of God.
Jainism does not teach the dependency on any supreme being for enlightenment. The Tirthankara is a guide and teacher who points the way to enlightenment, but the struggle for enlightenment is one's own. Moral rewards and sufferings are not the work of a divine being, but a result of an innate moral order in the cosmos; a self-regulating mechanism whereby the individual reaps the fruits of his own actions through the workings of the karmas.
Jains believe that to attain enlightenment and ultimately liberation from all karmic bonding, one must practice the ethical principles not only in thought, but also in words (speech) and action. Such a practice through lifelong work towards oneself is called as observing the Mahavrata ("Great Vows").
Gods can be thus categorized into embodied gods also known as Tīrthankaras and Arihantas or ordinary Kevalin, and non-embodied formless gods who are called Siddhas. Jainism considers the devīs and devas to be souls who dwell in heavens owing to meritorious deeds in their past lives. These souls are in heavens for a fixed lifespan and even they have to undergo reincarnation as humans to achieve moksa.