The Book of Lost Tales, Part 1 - J. R. R. Tolkien [42]
Then did the Gods praise Vána and Palúrien and rejoice in the light, saying to them: “Lo, this is a very fair tree indeed, and must have a name unto itself,” and Kémi said: “Let it be called Laurelin, for the brightness of its blossom and the music of its dew,” but Vána would call it Lindeloksë, and both names remain.
Now was it twelve hours since Lindeloksë had first sprouted, and at that hour did a glint of silver pierce the yellow blaze, and behold the Valar saw a shoot arise in that place whereto the pools of Silindrin had been poured. It had a bark of tender white that gleamed like pearls and it grew even as swiftly as had Laurelin, and as it grew the glory of Laurelin abated and its blossom shone less, till that tree glowed only gently as in sleep: but, behold, the other waxed now to a stature even as lofty as Laurelin, and its stock was yet more shapely and more slender, and its rind like silk, but its boughs above were thicker and more tangled and its twigs denser, and they put forth masses of bluish green leaves like spearheads.
Then did the Valar stare in wonder, but Palúrien said: “Not yet has this tree ceased its growing”, and behold as she spake it blossomed, and its blossoms did not hang in clusters but were like separate flowers growing each on fine stems that swung together, and were as silver and pearls and glittering stars and burnt with a white light; and it seemed as if the tree’s heart throbbed, and its radiance wavered thereto waxing and waning. Light like liquid silver distilled from its bole and dripped to earth, and it shed a very great illumination about the plain, yet was that not as wide as the light of the tree of gold, and by reason also of its great leaves and of the throb of its inward life it cast a continual flutter of shadows among the pools of its brightness, very clear and black; whereat Lórien could not contain his joy, and even Mandos smiled. But Lórien said: “Lo! I will give this tree a name and call it Silpion”, and that has ever been its name since. Then Palúrien arose and said to the Gods: “Gather ye now all the light that drips in liquid shape from this fair tree and store it in Silindrin, and let it fare thence but very sparingly. Behold, this tree, when the twelve hours of its fullest light are past, will wane again, and thereat will Laurelin blaze forth once more; but that it may not be exhausted water it ever gently from the cauldron of Kulullin at the hour when Silpion grows dim, but to Silpion do ye in the same manner, pouring back the gathered light from deep Silindrin at every waning of the tree of gold. Light is the sap of these trees and their sap is light!”
And in these words did she signify that albeit these trees must needs be watered with light to have sap and live, yet of their growth and being did they ever make light in great abundance still over and beyond that which their roots sucked in; but the Gods hearkened to her bidding,