The Witness is gone.

But so is Cayde-6, who sacrificed his Light to restore your Ghost's. He bet it all on you. Still, Ghost can feel Cayde's presence. It's as though he and every other Ghost and every other Guardian that came before you are connected by the Traveler's Light. The Witness sought to give meaning to the universe, but Cayde has shown you that meaning—like fate—is yours to choose. His last act was to ensure that you and your Ghost will have a future together in a way that he and Sundance could not. What will you do with it?