Christ suffered three hours of darkness as symbol of being utterly cut off from his Father. Through the darkness of his suffering, he earned the right to become the Light of the World that gives light to those who sit in darkness. We already experience that light in part, and we anxiously await the return of Christ, to usher in the new heavens and the new earth, in which there will no longer be darkness.
2 Mais pour vous qui craignez mon nom, se lèvera Le soleil de la justice, Et la guérison sera sous ses ailes; Vous sortirez, et vous sauterez comme les veaux d'une étable,