I am reminded of one of my favorite talks from General Conference in 2006, entitled "Sunday Will Come" by Joseph B. Wirthlin. Elder Wirthlin spoke of the dark times in our lives, and how we can compare that (in a much smaller way) to the difficulty of the Savior's final days on earth. Even in those darkest hours, we can have the reassurance that "Sunday will come," just as it did for the Lord of all.
Here is my favorite excerpt from that powerful testimony:
"Each of us will have our own Fridays—those days when the universe itself seems shattered and the shards of our world lie littered about us in pieces. We all will experience those broken times when it seems we can never be put together again. We will all have our Fridays.
"But I testify to you in the name of the One who conquered death—Sunday will come. In the darkness of our sorrow, Sunday will come.
"No matter our desperation, no matter our grief, Sunday will come. In this life or the next, Sunday will come."P.S. - Listen to the whole talk here.