This volume completes the critical edition of the large extant fragment of the Nirvāṇaprakaraṇa — the sixth section of the Mokṣopāya — with the commentary Nirvāṇaṭīkā of Bhāskarakaṇṭha, one of the last great non-dualist Śaivite masters.The Mokṣopāya, a huge philosophico-soteriological work probably composed by a Kashmiri author in the tenth century of our era, was the original version of what would become the Yogavāsiṣṭha, which enjoyed enormous popularity in India, in certain regions second only to the two great epic poems.