The Abhidharmakosa is one of the most important and influential Psycho-metaphysical literatures of Buddhisum which was composed by the well-known early Buddhologist Vadubandhu (4th/5th century CE.). Vasubandhu was born into a Brahim family of ancient Indian province of Gandhara (Peshawar of modern Pakistan), He became a Buddhist Bhikku in Sarvastivada School of Buddhism. He studied Vaibhasika Abhidharma in Kashmir and at the conclusion of his studies, Vasubandhu composed his most famous treaties Abhidharmakosa. He later in life converted to Mahayana Buddhism due to the influence from his half-brother Asanga, also another influential Buddhist author. Vasubandhu also compose several other treatises.