A very ancient pagan tradition

 The Christian’s Holy Ghost descended as a dove and alighted on Christ’s head at his baptism (Luke 3:22). The Holy Ghost in the shape of a bird – a dove or a pigeon – is a very ancient pagan tradition. In India, a dove was uniformly the emblem of the Holy Spirit or Spirit of God. A dove stood for a third member of the Trinity, and was the regenerator or regeneratory power. Compare this with Titus (3:5): regeneration and renewing of the Holy Ghost. A person being baptized under the Brahminical theocracy was said to be regenerated and born again, or, they were born into the spirit, or the spirit into them—the dove into or upon them.