We should always remember that the trials of life are sent for our good and our instructions. God knows what keys in the human soul to touch in order to draw out its sweetness. Do not think that uninterrupted joy is good. The sunshine lies upon the mountaintop all day, and lingers there latest and longest at eventide. Yet it is the valley that is green and fertile, while the peak is barren and unfruitful.
Life that is all sunshine and no shade, all happiness without sorrow, all pleasure without pain, is not life at all. Life is made up of joys and sorrows, and the joys are all the sweeter becuase of the sorrows
From "The Golden Gems of Life" by Ferguson & Allen
However when in the middle of a trial, it is all darkness and misery. It is hard to see anything positive in times of hardship.