Movement is human philosophy. The world is stable because the earth rotates. Life is only if man works. Death happenswhen movement stops. So migration keeps turning like the wheel of life. There is no room for likes and dislikes. Migration refersto the movement of an individual or a small group from one fixed place to another. People of the Sangam period divided theirlife into internal and external. Inner lives were admired parallel to the two wheels of the chariot. Migration was present in both lives. Temporal displacement was observed in both cases.
Forschung (Wed,) studied this question.