Vasubandhu
Vasubandhu was an influential Indian Buddhist philosopher, monk, and logician from Gandhara, who lived during the 4th to 5th century CE. He is one of the most important figures in the development of Mahayana Buddhism and a co-founder of the Yogacara (Consciousness-Only) school along with his half-brother Asanga. Initially a master of Sarvastivada Abhidharma, he authored the monumental Abhidharmakosabhasya, a comprehensive encyclopedia of Buddhist thought. After his conversion to Mahayana, he produced seminal Yogacara texts, including the Twenty and Thirty Verses, establishing a sophisticated idealist philosophy. His prolific writings, which earned him the title 'Master of a Thousand Treatises,' have profoundly influenced Buddhist philosophy across India, Tibet, and East Asia.
Who was Vasubandhu and what is he known for?
Vasubandhu was a 4th-5th century Indian Buddhist philosopher and monk, widely regarded as one of the most influential thinkers in Buddhist history. He is known for his monumental Abhidharmakosabhasya (Commentary on the Treasury of Abhidharma), a comprehensive encyclopedia of Buddhist thought that remains a key source for non-Mahayana Abhidharma philosophy. He is also a co-founder of the Yogacara (Consciousness-Only) school of Mahayana Buddhism, alongside his half-brother Asanga. His works on logic and epistemology also made lasting contributions to Indian philosophy.
What is the Abhidharmakosha and why is it important?
The Abhidharmakosha (Treasury of Abhidharma) is Vasubandhu's magnum opus, a comprehensive treatise on early Buddhist thought that systematically presents the doctrines of the Sarvastivada school. The work, written in verse with an auto-commentary (Abhidharmakosabhasya), covers topics ranging from cosmology and psychology to ethics and meditation. It is widely used in Tibetan and East Asian Buddhism as the major source for Abhidharma philosophy and continues to be an essential reference for understanding Buddhist doctrinal history.
What is the Yogacara school and Vasubandhu's role in it?
Yogacara, also known as the Consciousness-Only (Vijnanavada) school, is a major Mahayana Buddhist philosophical tradition that holds that all perceived phenomena are merely manifestations of consciousness. Along with his half-brother Asanga, Vasubandhu is considered a co-founder of this school. His concise and influential Yogacara texts, such as the Twenty Verses (Vimsatika) and the Thirty Verses (Trimśikā), set forth the school's idealist metaphysics of 'appearance only' (vijñapti-mātra), establishing the standard for the tradition.
What are Vasubandhu's major works?
Vasubandhu's major works include the Abhidharmakosabhasya (Commentary on the Treasury of Abhidharma), his pre-Mahayana masterpiece; the Vimsatika (Twenty Verses) and Trimśikā (Thirty Verses), which are foundational texts of Yogacara philosophy; the Trisvabhavanirdesa (Treatise on the Three Natures), another key Yogacara treatise; and the Vyakhyayukti (Exposition of Reasoning), a work on scriptural interpretation. He also wrote commentaries on many Mahayana sutras, works on logic, and devotional poetry. He is said to have written a thousand works, earning him the title 'Master of a Thousand Treatises'.
How did Vasubandhu convert to Mahayana Buddhism?
According to traditional accounts, Vasubandhu initially criticized Mahayana Buddhism while he was a master of the Sarvastivada school. His half-brother Asanga, who had already converted to Mahayana and was a prominent Yogacara teacher, is credited with influencing his conversion. Asanga is said to have sent a message to Vasubandhu, feigning illness, and when Vasubandhu visited him, Asanga introduced him to Mahayana teachings. Vasubandhu was deeply moved and subsequently converted, after which he devoted himself to promoting Yogacara philosophy and writing numerous Mahayana treatises.
What is Vasubandhu's contribution to logic?
Vasubandhu made significant contributions to Indian logic. He refined classical Indian syllogistic logic by distinguishing the procedure for reaching inferences in formal debate (which involves five steps) from the method used in personal thought (which involves three steps). His work on logic and argumentation helped fortify the traditions of dialectical contestability and debate. He is considered to have been an originator of formal logic in the Dharmic logico-epistemological tradition, influencing later logicians such as Dignaga.
Where and when did Vasubandhu live?
Vasubandhu was born in Purusapura (modern-day Peshawar, Pakistan) in the region of Gandhara, in northern India. He lived during the 4th to 5th century CE, a period corresponding to the height of the Gupta empire. He was born into a Brahmin family and was the half-brother of the philosopher Asanga. He studied Sarvastivada doctrine in Ayodhya and later spent time at the renowned Nalanda university. His life and works are documented in various biographies, including one translated into Chinese by Paramartha.
What is Vasubandhu's philosophical position on the nature of reality?
Vasubandhu's mature philosophical position, as articulated in his Yogacara works, is that all seemingly external objects are merely mental representations or appearances. This 'consciousness-only' (vijnapti-matra) view holds that the reality we perceive does not exist independently of consciousness. He distinguishes between three natures of phenomena: the imagined, the dependent, and the perfectly realized, as outlined in his Trisvabhavanirdesa. His philosophy has been described as a form of epistemological idealism, phenomenology, and has been compared to Kant's transcendental idealism.