“We could never learn to be brave and patient, if there were only joy in the world.”- Helen Keller
2 Nephi 2: 11 For it must needs be, that there is an opposition in all things. If not so, my firstborn in the wilderness, righteousness could not be brought to pass, neither wickedness, neither holiness nor misery, neither good nor bad.
D&C 58:2 For verily I say unto you, blessed is he that keepeth my commandments, whether in life or in death; and he that is faithful in tribulation, the reward of the same is greater in the kingdom of heaven. 3 Ye cannot behold with your natural eyes, for the present time, the design of your God concerning those things which shall come hereafter, and the glory which shall follow after much tribulation.