The Sun and Moon Picture

"Then Manwë bade Yavanna and Nienna to put forth their powers of growth and healing; and they put forth all their powers upon the Trees. But the tears of Nienna availed not to heal their mortal wounds; and for a long while Yavanna sang alone in the shadows. Yet even as hope failed and her song faltered, Telperion bore at last upon a leafless bough one great flower of silver, and Laurelin a single fruit of gold... and Manwë hallowed them, and Aulë and his people made vessels to hold them and preserve their radiance... that they might become lamps of heaven, outshining the ancient stars..."

- The Silmarillion (Chapter 11: Of the Sun and the Moon and the Hiding of Valinor) by J.R.R. Tolkien

Another Silmarillion illustration - love love love pretty pretty mind-pictures
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