Toh 4305Untitled

Exposition of Treatise Toh 4305 — Northern Mahayana Tradition

Background

The Tengyur (Bstan 'gyur)—the Tibetan Buddhist Treatise Collection—is a compilation of treatises and commentaries on the Buddha’s Dharma, translated from Sanskrit into Tibetan between approximately the eighth and thirteenth centuries. Among these, Toh 4305 reflects the profundity of the Northern Mahayana tradition, particularly the Tibetan philosophical tradition that developed under the influence of the Yogācāra (Mind-Only) and Madhyamaka (Middle Way) teachings.

Although the official title has not been fully identified, this work aims to clarify important theoretical questions regarding the nature of mind, perception, and the path to liberation in a Mahayana context. It is one of the treatises highly valued by Tibetan scholars and monastics for gaining a profound understanding of the nature of phenomena (dharmatā) and the Buddha-nature of mind.

Main content

Treatises in the Tengyur often focus on the analysis of truth. According to the Mahayana tradition, Toh 4305 appears to address core questions: What is the mind in reality? How can cognition transcend the illusion of duality (ālambana-parikalpita)? What is the path to attaining a pure mind (suddha-citta)?

From the Yogācāra perspective, mind and its representations (ālambana) possess no truly independent existence. Perception is produced by mind, yet mind is itself conditioned by accumulated seeds (bīja) of ignorance. This treatise emphasizes that recognizing the selfless nature (anātman) of phenomena is the key to escaping the cycle of saṃsāra.

For the Madhyamaka (Middle Way) tradition, this work may address emptiness (śūnyatā)—not as absolute nothingness, but as the absence of an independent intrinsic nature. This does not deny relative existence (sammuti-satya), but clarifies how dharmas exist interdependently through causes and conditions.