In deep sleep, consciousness reverts to its pure conditionthe individual self becomes the All-Self: the rainbow, no longer prismatic by reason of its refraction in materiality, becomes the pure white light; the melody of life resolves itself into the primordial harmony; sequence becomes simultaneity, and Time, no longer "besprent with seven-hued circumstance," is swallowed up in duration.

And he had learned that a rainbow is a thing of gracious promise.

when the stranger's second, advancing, exclaimed, in a voice which I immediately recognized, "Why, zounds! Rainbow, are you the man?"

The rainbow remains a rainbow, for all the sciences.