Hayley

“And Iluvatar spoke to Ulmo, and said: 'Seest thou not how here in this little realm in the Deeps of Time Melkor hath made war upon thy province? He hath bethought him of bitter cold immoderate, and yet hath not destroyed the beauty of thy fountains, nor of my clear pools. Behold the snow, and the cunning work of frost! Melkor hath devised heats and fire without restraint, and hath not dried up thy desire nor utterly quelled the music of the sea. Behold rather the height and glory of the clouds, and the ever changing mists; and listen to the fall of rain upon the Earth! And in these clouds thou art drawn nearer to Manwe, thy friend, whom thou lovest.'

Then Ulmo answered: 'Truly, Water is become now fairer than my heart imagined, neither had my secret thought conceived the snowflake, nor in all my music was contained the falling of the rain. I will seek Manwe, that he and I may make melodies for ever to my delight!' And Manwe and Ulmo have from the beginning been allied, and in all things have served most faithfully the purpose of Iluvatar.”
― J.R.R. Tolkien, The Silmarillion