Utpaladeva was considered a siddha, a "perfected being", one of the masters of the tantric tradition in Kashmir, and he is best known for his philosophical treatises. The Shivastrotravali reflects Uptaladeva's philosophy, known as the Pratyabhijna school. And yet it is unique among the author's work in its not being a straightforward philosophical treatise but instead, as Dr. Bailly points out in her introduction, more of a spiritual diary of one who is ...