Tibetan Buddhists valued commentaries as faithful transmission of authentic Indian teachings rather than risking doctrinal error through new composition.
Tibetan Buddhist traditions, particularly after the 11th century, developed within a framework that saw Indian Buddhist philosophy as the apex of doctrinal achievement. When scholars like Atisha (982–1054) and Tsongkhapa (1357–1419) arrived or emerged, the dominant intellectual culture treated Indian texts—especially the philosophical works of the Madhyamaka and Yogacara schools—as definitive sources of truth. Writing original compositions risked deviating from these authoritative sources, a risk Tibetan scholars took seriously. Instead, commentaries allowed them to preserve Indian teachings while demonstrating their own interpretive mastery and clarifying ambiguities for Tibetan audiences.
This emphasis reflected a broader Buddhist epistemological value: the importance of lineage and received wisdom. Rather than innovation, the goal was accurate transmission of the Dharma as it had been refined through centuries of Indian debate and scholarship. Commentaries preserved this continuity while engaging critically with the text.
In Indian Buddhist intellectual culture, from which Tibetan scholars inherited their methods, the commentary (Sanskrit: tika or bhashya) was the primary vehicle for philosophical development. Scholars like Candrakirti (600–650) and Dharmakīrti (600–660) produced commentaries that were themselves treated as foundational texts. Tibetan scholars simply extended this proven tradition.
Commentaries offered practical advantages. They allowed an author to remain anchored to an established text while developing intricate arguments, exploring objections, and reconciling apparent contradictions. A subcommentary on a commentary added another layer of clarification. This nested structure meant that Tibetan scholars could make subtle philosophical points without appearing to introduce doctrinal novelty. The Gelug tradition under Tsongkhapa exemplified this approach, producing extensive commentarial literature on Indian texts like Nagarjuna's Fundamental Verses on the Middle Way and Dharmakirti's Commentary on Valid Cognition.
Tibetan Buddhism developed within a competitive landscape where different schools—Nyingma, Kagyu, Sakya, and Gelug—claimed fidelity to authentic Buddhism. Original compositions were risky in this environment because they could be attacked as non-Indian innovations or doctrinal deviations. Commentaries, by contrast, grounded arguments in acknowledged authorities, making them harder to dismiss.
The Gelug school's dominance from the 17th century onward partly reflected Tsongkhapa's methodological choice to prioritize Indian sources and commentarial scholarship. His Great Commentary on Nagarjuna's Fundamental Verses became the standard Gelug interpretation. Other schools adopted similar strategies. This wasn't mere conservatism; it was a sophisticated rhetorical strategy that treated fidelity to Indian sources as the measure of legitimacy.
Tibetan history involved repeated episodes of political instability, religious suppression, and the threat of textual loss. Commentarial work provided a practical benefit: it kept important Indian texts alive through active engagement and exposition. When commentaries were copied and studied, the root texts they explained were also preserved and circulated. This created a protective network around foundational sources.
Moreover, commentaries allowed scholars to incorporate new developments—new logical techniques, refined interpretations of debated points—without appearing to abandon tradition. The format itself enabled continuity amid change.
Not all Tibetan Buddhist schools emphasized commentaries equally. The Nyingma school, preserving the earlier translation tradition, maintained more flexibility toward original composition, particularly in Dzogchen (Great Perfection) teachings attributed to Padmasambhava. However, even Nyingma scholars produced extensive commentaries on Indian Madhyamaka texts.
The Kagyu tradition, emphasizing direct guru-to-student transmission, sometimes privileged oral instruction and experiential realization over textual scholarship, though major Kagyu figures like Jamgön Kongtrul (1813–1899) still produced massive commentarial works. The differences were matters of emphasis rather than absolute principle: all schools valued commentaries; they simply weighted them differently against other sources of authority.