Para-trisika-Vivarana by Abhinavagupta: The Secret of Tantric Mysticism
A Classical treatise of yoga practices and philosophy according to the Kashmir traditions of Saivism. Vijnanabhairava is a very ancient book on yoga. It studiously eschews mechanical worship, external rites and ceremonies and goes directly to the heart of the problem of the union of human consciousness with the Divine. It describes 112 years of yoga . For this purpose, it makes full use of all the aspects of human life prana , manas, imagination and intuition.