In the Buddha's teaching, the image of the turning spoked wheel, which in the earlier period had been symbolic of the world's glory, thus became a sign, on one hand, of the wheeling round of sorrow, and, on the other, release in the sunlike doctrine of illumination.
Campbell argues that the Great Reversal transformed the wheel-symbol from cosmic triumphalism into the dual sign of samsaric bondage and soteriological liberation in Buddhist teaching.
, Creative Mythology: The Masks of God, Volume IV, 1968thesis