Kashmiri literature has a history of at least 2,500 years, going back to its glory days of Sanskrit. Early names include Patanjali, the author of the Mahabhashya commentary on Panini's grammar, suggested by some to have been the same to write the Hindu treatise known as the Yogasutra, and Dridhbala, who revised the Charaka Samhita of Ayurveda.
In medieval times the great Kashmir Valley School of Art, Culture and Philosophy Kashmir Shaivism arose. Its great masters include Vasugupta (c. 800), Utpala (c. 925), Abhinavagupta and Kshemaraja. In the theory of aesthetics one can list the Anandavardhana and Abhinavagupta. Many generations later, in our modern times, a new lease of life given, to same “school of thought” was given by Swami Lakshman Joo of Ishbher/Gupta Ganga, Srinagar, India.