It's over.
Crow has finally confronted and defeated the Nightmare of Uldren Sov, and in doing so, believes he understands his purpose as a Guardian.
"I thought being a Guardian was my destiny," Crow said. "That wielding the Light for good was the most I had to offer. But it's clear now… this is what the Traveler chose me for. I was reforged in the Light, for a purpose."
Crow's renewed faith and strength has given him a new lease on life, and you're to thank for that. Return to Eris at the Crown of Sorrow to further discuss this victory.