A Jyotirlinga or Jyotirling or Jyotirlingam, is a devotional object representing the Supreme God Shiva. Jyoti means 'radiance' and lingam the 'Image or Sign' of Shiva; Jyotir Lingam thus means the The Radiant Sign of The Almighty Shiva. There are twelve traditional Jyotirlinga shrines in India, 5 of them in Maharashtra.
According to Śiva Mahāpurāṇa, once Brahma (the god of creation) and Vishnu (the form of God during Preservation) had an argument over supremacy of creation. To settle the debate, Supreme God Shiva pierced the three worlds appearing as a huge Infinite Pillar of Light, the Jyotirlinga which later cooled into the Holy Mountain Annamalai (on which the Temple of Arunachaleshvara is located). Vishnu and Brahma split their ways to downwards and upwards respectively to find the end of the light in either directions. Brahma lied that he found out the end, while Vishnu conceded his defeat. The jyotirlinga is the Supreme Siva, partless reality, out of which Shiva appeared in another Form, Lingodbhava. The jyothirlinga shrines are Temples where Shiva appeared as a fiery column of light. Originally there were believed to be 64 jyothirlingas while 12 of them are considered to be very auspicious and holy. Each of the twelve jyothirlinga sites take the name of the presiding deity, each considered a different manifestation of Shiva. At all these sites, the primary image is lingam representing the beginningless and endless Stambha pillar, symbolizing the infinite nature of Shiva. The twelve jyothirlinga are Somnath in Gujarat, Mallikarjuna at Srisailam in Andhra Pradesh, Mahakaleswar at Ujjain in Madhya Pradesh, Omkareshwar in Madhya Pradesh, Kedarnath in Uttrakhand, Bhimashankar at Pune in Maharashtra, Viswanath at Varanasi in Uttar Pradesh, Tryambakeshwar at Nashik in Maharashtra, Vaidyanath Temple in Deoghar District of Jharkhand, Aundha Nagnath at Aundha in Hingoli District in Maharashtra, Rameshwar at Rameshwaram in Tamil Nadu and Grushneshwar at Ellora near Aurangabad, in Maharashtra.