§ Of Túrin Turambar The Silmarillion

Thus ended Beleg Strongbow, truest of friends, greatest in skill of all that harboured in the woods of Beleriand in the Elder Days, at the hand of him whom he most loved; and that grief was graven on the face of Túrin and never faded. But courage and strength were renewed in the Elf of Nargothrond, and departing from Taur-nu-Fuin he led Túrin far away. Never once as they wandered together on long and grievous paths did Túrin speak, and he walked as one without wish or purpose, while the year waned and winter drew on over the northern lands. But Gwindor was ever beside him to guard him and guide him; and thus they passed westward over Sirion and came at length to Eithel Ivrin, the springs whence Narog rose beneath the Mountains of Shadow. There Gwindor spoke to Túrin, saying: 'Awake, Túrin son of Húrin Thalion! On Ivrin's lake is endless laughter. She is fed from crystal fountains unfailing, and guarded from defilement by Ulmo, Lord of Waters, who wrought her beauty in ancient days.' Then Túrin knelt and drank from that water; and suddenly he cast himself down, and his tears were unloosed at last, and he was healed of his madness.