. . . If, then, a person asks how he is to know whether he is dreaming on in the world’s slumber, or is really awake and alive unto God, let him first fix his mind upon some one or other of his besetting infirmities. Every one who is at all in the habit of examining himself, must be conscious of such within him. Many men have more than one, all of us have some one or other; and in resisting and overcoming such, self-denial has its first employment. One man is indolent and fond of amusement, another man is passionate or ill-tempered, another is vain, another has little control over his tongue; others are weak, and cannot resist the ridicule of thoughtless companions; others are tormented with bad passions, of which they are ashamed, yet are overcome. Now let every one consider what his weak point is; in that is his trial. His trial is not in those things which are easy to him, but in that one thing, in those several things, whatever they are, in which to do his duty is against his nature.