According to ancient Hindu texts and mythology, Omkareshwar is believed to be the place where Lord Shiva granted his divine blessings to the demon King, Ravan, after a penance. The island on which the Omkareshwar temple stands is in the shape of the sacred syllable "Om," further enhancing its spiritual significance.
Omkareshwar is mentioned in the revered Shiv Mahapurana, which tells the story of how the demon King, Ravan, attempted to lift Mount Kailash, the abode of Lord Shiva, in an act of extreme devotion. Pleased with his dedication, Lord Shiva blessed him with the "Atmalinga" (the divine Shiva Linga). However, due to the cunning interference of the gods, Ravan was unable to carry the Atmalinga back to Lanka. The Linga, which was placed on the earth during Ravan's journey, became the Omkareshwar Jyotirlinga.
The temple is also associated with the legend of the twin islands—Omkareshwar and Mandhata—which are believed to represent Lord Shiva and Goddess Parvati, respectively. These islands are considered a powerful spiritual nexus where devotees come to seek blessings for mental peace, health, and prosperity.