Green and purple remind me of the interior colors most prevalent under very pure LSD. The purple is not chromatic purple, but “Purple beyond purple,” ultra-violet, which is, scientifically, “the light higher than eyesight.” Interestingly, U.V. lamps have come to be called “black light,” and have some interesting properties. If U.V. closes the color wheel, it and green are opposite each other, for green is the mid-color of the visible spectrum. Purple and green per se seem to imply Jupiter and Venus; but I think the “purple” meant here is the color of Spirit. Since vision is attributed to Fire, “higher than eyesight” means “higher than Fire,” or, once more, Spirit (Quintessence). This is, then, a further commentary on the “egg” of verse 49.