Originally published as "Techniques de la transmission mystique dans le Shivaisme du Cachemire", by Lilian Silburn, in Hermes. Numbered footnotes/
Of all the Indian philosophical systems, the monistic system of Kashmir most thoroughly and profoundly explains the various influences of the spiritual master. [a]
Even before the 7th century, in Kashmir flourished several mystical traditions (sampradaya) – Trika, Kula, Krama, etc. – each possessing its own lineage of venerated masters.
Abhinavagupta, [b] who lived in the late 10th century, had as gurus the greatest masters of his age, and was initiated by them in these different traditions. Thus did Shambhunatha, [c] who had restored the Kula system, [d] reveal the Self to him and teach him the practices of initiation.
[c. Saints and Sages of Kashmir, Triloki Nath Dhar, Google Books ]
Abhinavagupta commented upon certain treatises and descriptions of these systems. The compendium of these teachings is to be found in his voluminous Tantraloka (The Light of Tantra), [e] concerned with paths of liberation and composed in Sanskrit verses.
Author, Lilian Silburn (1908-1993)
The materials which have served in the preparation of this article have been taken from the Tantraloka: they thus form a part of the teaching of Abhinavagupta, himself a famous master with numerous disciples. 
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