The Silmarillion

Aulë has might little less than Ulmo. His lordship is over all the substances of which Arda is made. In the beginning he wrought much in fellowship with Manwë and Ulmo; and the fashioning of all lands was his labour. He is a smith and a master of all crafts, and he delights in works of skill, however small, as much as in the mighty building of old. His are the gems that lie deep in the Earth and the gold that is fair in the hand, no less than the walls of the mountains and the basins of the sea. The Noldor learned most of him, and he was ever their friend. Melkor was jealous of him, for Aulë was most like himself in thought and in powers; and there was long strife between them, in which Melkor ever marred or undid the works of Aulë, and Aulë grew weary in repairing the tumults and disorders of Melkor. Both, also, desired to make things of their own that should be new and unthought of by others, and delighted in the praise of their skill. But Aulë remained faithful to Eru and submitted all that he did to his will; and he did not envy the works of others, but sought and gave counsel. Whereas Melkor spent his spirit in envy and hate, until at last he could make nothing save in mockery of the thought of others, and all their works he destroyed if he could.

The spouse of Aulë is Yavanna, the Giver of Fruits. She is the lover of all things that grow in the earth, and all their countless forms she holds in her mind, from the trees like towers in forests long ago to the moss upon stones or the small and secret things in the mould. In reverence Yavanna is next to Varda among the Queens of the Valar. In the form of a woman she is tall, and robed in green; but at times she takes other shapes. Some there are who have seen her standing like a tree under heaven, crowned with the Sun; and from all its branches there spilled a golden dew upon the barren earth, and it grew green with corn; but the roots of the tree were in the waters of Ulmo, and the winds of Manwë spoke in its leaves. Kementári, Queen of the Earth, she is surnamed in the Eldarin tongue.

The Fëanturi, masters of spirits, are brethren, and they are called most often Mandos and Lórien. Yet these are rightly the names of the places of their dwelling, and their true names are Námo and Irmo.

Námo the elder dwells in Mandos, which is westward in Valinor. He is the keeper of the Houses of the Dead, and the summoner of the spirits of the slain. He forgets nothing; and he knows all things that shall be, save only those that lie still in the freedom of Ilúvatar. He is the Doomsman of the Valar; but he pronounces his dooms and his Judgements only at the bidding of Manwë. Vairë the Weaver is his spouse, who weaves all things that have ever been in Time into her storied webs, and the halls of Mandos that ever widen as the ages pass are clothed with them.

Irmo the younger is the master of visions and dreams. In Lórien are his gardens in the land of the Valar, and they are the fairest of all places in the world, filled with many spirits. Estë the gentle, healer of hurts and of weariness, is his spouse. Grey is her raiment; and rest is her gift. She walks not by day, but sleeps upon an island in the tree-shadowed lake of Lórellin. From the fountains of Irmo and Estë all those who dwell in Valinor draw refreshment; and often the Valar come themselves to Lórien and there find repose and easing of the burden of Arda.

Mightier than Estë is Nienna, sister of the Fëanturi; she dwells alone. She is acquainted with grief, and mourns for every wound that Arda has suffered in the marring of Melkor. So great was her sorrow, as the Music unfolded, that her song turned to lamentation long before its end, and the sound of mourning was woven into the themes of the World before it began. But she does not weep for herself; and those who hearken to her learn pity, and endurance in hope. Her halls are west of West, upon the borders of the world; and she comes seldom to the city of Valimar where all is glad. She goes rather to the halls of Mandos, which are near to her own; and all those who wait in Mandos cry to her, for she brings strength to the spirit and turns sorrow to wisdom. The windows of her house look outward from the walls of the world.