Philosophy of Vasubandhu in Vimsatika and Trimsika
By Surendra Nath Das Gupta
Summary
Vasubandhu's *Vimsatika* and *Trimsika* present a Yogacara idealist philosophy where all phenomena arise from consciousness (*vijñaptimātra*). He argues that perceived external objects are mental projections, akin to dream experiences, lacking independent existence. Cognitions are not caused by external entities but by inherent transformations of consciousness through threefold modifications: *vijñapti* (basis), *vijñaptimatra* (pure consciousness), and *vijñapti-mātra* (manifestations). These transformations create the illusion of duality (perceiver/perceived) and objective reality. Vasubandhu refutes the reality of atoms or wholes as external objects, asserting that even interactions like killing occur through mental imprints affecting others' thought-streams. The *Trimsika* and Sthiramati's commentary clarify that pure intelligence (*vijñaptimātra*)—eternal, blissful, and unchanging—is the sole reality. Erroneous perceptions of self and objects arise from misattributing characteristics to its transformations. Vasubandhu rejects extreme idealism denying consciousness's reality, affirming *vijñaptimātra* as the permanent substrate. Saints realize this through transcendent, non-conceptual awareness (*nirvikalpa-jñāna*), dissolving dualistic thought and afflictions. The text critiques external existence while explaining mental construction of reality, emphasizing consciousness's inherent power (*śakti*) as the source of all phenomena.
Conclusion
Vasubandhu's idealism in *Vimsatika* and *Trimsika* presents a radical reconfiguration of reality, positing that all phenomena—subjective and objective—are mere transformations of pure consciousness (*vijñapti-mātrā*). By deconstructing the reliability of perceptual evidence and dismantling the ontological validity of external objects, he argues that the apparent world is as illusory as a dream, sustained only by habitual cognitive constructs. This framework not only challenges conventional notions of material existence but also redefines agency and interaction through the interplay of thought-currents, suggesting that moral and causal efficacy operates within a purely mental realm. The text underscores the paradoxical nature of idealism: while denying objective reality, it affirms the dynamic, self-reflexive nature of consciousness as the sole ground of experience. This contribution reshapes metaphysical discourse, offering a coherent, if counterintuitive, system that prioritizes subjective awareness over external substance, inviting a radical reimagining of existence and knowledge.