Kashmir has deep roots in Shaivism which accepts no restrictions based on caste, creed and colour. It gives more importance to practice than to bookish knowledge and logical discussions. In its theory, it comes closer to the theism of Bhagavad Gita. In practice, it advises to live the life of a householder and to practice, side by side, the Shiva yoga for the sake of self-realisation. Kashmiri Shaivism is a system of idealistic monism based on the Shivasutra. This system deals with the three-fold principle of God, Soul, and Matter, it is called Trikasastra or simply Trika. Its central position is that there is only one Ultimate Principle, but this principle has two aspects, one transcendental and the other immanent. In Kalhana's Rajatarangini, written in the 12th century A.D., an important quasi-history or near-history of the Kashmir area provides a valuable and reasonably accurate picture of the social-cultural life of the region from the eighth or ninth centuries onward.  Prior to the eighth century, Kashmir was a centre for Buddhist studies.  Already in the reign of Asoka in the 3rd century B.C., some Buddhist traditions had spread to the Kashmir region. Moreover, from the first few centuries A.D., beginning with the reign of Kaniska and thereafter, Kashmir became an important centre for northern Buddhist developments including traditions of Sarvastivada,  the Greco-Buddhist art of Gandhara, and early Mahayana, both in its popular manifestations and in its more intellectual formulations of Madhyamika and Yogacara. Running parallel through these Buddhist centuries in the Kashmir area, there were also developing traditions of an archaic Naga cult together with the emergence of the early texts of Saivagama, although very little is known about these latter traditions prior to the 8th or the 9th century. At any rate, there is enough evidence, even for these earlier centuries, to suggest that, in-spite of the geographical isolation of the Kashmir valley, the region was unusually cosmopolitan, wherein traditions of Buddhist, Hindu, Jain, Central Asian and even Mediterranean culture freely intermingled and cross-fertilized one another.  To have more research on Kashmir Shaivism, the globally acknowledged Ishwar Ashram Trust has established Kashmir Shaiva Institute which will be the first research, studies and publications centre on Kashmir Shaivism in Jammu and Kashmir. The institute will reach out to all educational institutes across the country and globe to promote Kashmiri Shaivism or Trika Shaivism, which is a non-dualist tradition of Shaiva-Shakta Tantra that originated after 850 CE. It became a pan-Indian movement which was termed 'Trika' (The Trinity) by great sage Abhinavagupta, and particularly flourished in Odisha, Karnataka and Maharashtra.