The power of one’s mental focus: Ellen G. White, The Ministry of Healing

The power of one’s mental focus: Ellen G. White, The Ministry of Healing , p. 247:
We are in a world of suffering. Difficulty, trial, and sorrow await us all along the way to the heavenly home. But there are many who make life’s burdens doubly heavy by continually anticipating trouble. If they meet with adversity or disappointment they think that everything is going to ruin, that theirs is the hardest lot of all, that they are surely coming to want. Thus they bring wretchedness upon themselves and cast a shadow upon all around them. Life itself becomes a burden to them. But it need not be thus. It will cost a determined effort to change the current of their thought. But the change can be made. Their happiness, both for this life and for the life to come, depends upon their fixing their minds upon cheerful things. Let them look away from the dark picture, which is imaginary, to the benefits which God has strewn in their pathway, and beyond these to the unseen and eternal.