Major rivers of the Indian subcontinent and their confluence ("sangam"), natural springs, origin of Ganges River (and "pancha-ganga"), along with high mountains such as Kailasha with Mansovar Lake are particularly revered spots in Shaivism. Twelve "jyotirlinga" sites across India have been particularly important pilgrimage sites in Shaivism representing the radiant light (jyoti) of infiniteness, as per Śiva Mahāpurāṇa. They are Somnatha, Mallikarjuna, Mahakaleshwar, Omkareshwar, Kedarnatha, Bhimashankar, Visheshvara, Trayambakesvara, Vaidyanatha, Nageshvara, Rameshvara and Grishneshwar. Other texts mention five Kedras (Kedarnatha, Tunganatha, Rudranatha, Madhyamesvara and Kalpeshvara), five Badri (Badrinatha, Pandukeshvara, Sujnanien, Anni matha and Urghava), snow lingam of Amarnatha, flame of Jwalamukhi, all of the Narmada River, and others. Kashi (Varanasi) is declared as particularly special in numerous Shaiva texts and Upanishads, as well as in the pan-Hindu Sannyasa Upanishads such as the "Jabala Upanishad".