My Christian friend, ever bear in mind these two things: that there is nothing so strong as the link of relationship, and nothing so tender as the link of communion.
All the combined power and counsel of earth and hell cannot sever the former, while an impure motive or idle word will break the latter.
If you are troubled with a cloudy half hour, get low before God, consider your ways; and when the cause that has robbed you of your joy has been detected, bring it at once to the light, confess your sin to God your Father, and judge yourself most unsparingly for the unwatchful, careless state of soul that allowed the thief to enter unchallenged.
But, never, never, NEVER confound your safety with your joy.