§ Akallabêth The Silmarillion

For in those days Valinor still remained in the world visible, and there Ilúvatar permitted the Valar to maintain upon Earth an abiding place, a memorial of that which might have been if Morgoth had not cast his shadow on the world. This the Númenóreans knew full well; and at times, when all the air was clear and the sun was in the east, they would look out and descry far off in the west a city white-shining on a distant shore, and a great harbour and a tower. For in those days the Númenóreans were far-sighted; yet even so it was only the keenest eyes among them that could see this vision, from the Meneltarma, maybe, or from some tall ship that lay off their western coast as far as it was lawful for them to go. For they did not dare to break the Ban of the Lords of the West. But the wise among them knew that this distant land was not indeed the Blessed Realm of Valinor, but was Avallónë, the haven of the Eldar upon Eressëa, easternmost of the Undying Lands. And thence at times the Firstborn still would come sailing to Númenor in oarless boats, as white birds flying from the sunset. And they brought to Númenor many gifts: birds of song, and fragrant flowers, and herbs of great virtue. And a seedling they brought of Celeborn, the White Tree that grew in the midst of Eressëa; and that was in its turn a seedling of Galathilion the Tree of Túna, the image of Telperion that Yavanna gave to the Eldar in the Blessed Realm. And the tree grew and blossomed in the courts of the King in Armenelos; Nimloth it was named, and flowered in the evening, and the shadows of night it filled with its fragrance.