The Tantraloka's thirty-seven chapters are not a miscellany; Abhinavagupta arranges them as a graded ascent, beginning with the philosophical foundations of Trika non-dualism, moving through cosmology and the classification of tattvas, the levels of reality from the grossest material elements up to the highest undivided consciousness, and only then descending into ritual proper: initiation, worship, mantra, the interior visualisations and, in its most esoteric chapters, the Kaula practices that use ordinarily transgressive substances and acts as vehicles for recognition precisely because they are the practices a contracted, rule-bound sense of self would most resist.
This structure is itself an argument. By placing philosophy before ritual, Abhinavagupta insists that no rite in the book means anything apart from the account of consciousness that precedes it; a reader who skips to the practical chapters without the philosophical grounding is, on his own terms, missing the point of the practice rather than getting to the useful part faster. Later tradition took the hint: Kshemaraja's digest of the system, and centuries of subsequent commentary, consistently treat the Tantraloka's architecture as inseparable from its content.
The text's survival is itself a Kashmir story. Manuscripts of this scale and technical density rarely travel far intact, and the Tantraloka is known today chiefly because it was preserved, copied and commented upon within Kashmir itself across many centuries, which is part of why the modern recovery of Kashmir Shaivism as a field of study has leaned so heavily on manuscript collections gathered from that one region.