Hinduism Indian religious influence in the Mediterranean worldreligion

Nearly as dubious as the question of Hindu influence on the religious life of East Asia is its influence on that of the ancient Mediterranean world. The Greek philosopher Pythagoras (c. 580–c. 500 bce) may have obtained his doctrine of metempsychosis (transmigration, or passage of the soul from one body to another; see reincarnation) from India, mediated by Achaemenian (6th–4th century bce) Persia, but similar ideas were known in Egypt and were certainly present in Greece before the time of Pythagoras. The Pythagorean doctrine of a cyclic universe may also be derived from India, but the Indian theory of cosmic cycles is not attested in the 6th century bce. Nevertheless, it is known that Hindu ascetics occasionally visited Greece. The most striking similarity between Greek and Indian thought is the resemblance between the system of mystical gnosis (esoteric knowledge) described in the Enneads of the Neoplatonic philosopher Plotinus (205–270) and that of the Yoga-sutras attributed to Patanjali, an Indian religious teacher sometimes dated in the 2nd century ce. The Patanjali text is the older, and influence must be suspected, though the problem of mediation remains difficult because Plotinus gives no direct evidence of having known anything about Indian mysticism. Several Greek and Latin writers (an example of the former being Clement of Alexandria) show considerable knowledge of the externals of Indian religions, but none gives any intimation of understanding their more recondite aspects.