‘After a time a great concourse gathered around the Ring of Doom; and the Valar sat in shadow, for it was night. But the stars of Varda now glimmered overhead, and the air was clear; for the winds of Manwe had driven away the vapours of death and rolled back the shadows of the sea.’ The Silmarillion.
The Two Trees are destroyed and Morgoth has fled. Yet, even as the Valar and the Elves mourn, the Powers ask Feanor to sacrifice the Silmarils so the Two Trees might be resurrected by Yavanna. [More]