That you feel sad and mentally unsettled is no strange thing, for the whole life of the faithful is interwoven with despondency and gladness. Look at the apostles: Christ taken from them brought sorrow, then the Spirit gave joy; scoffers caused dejection, success in preaching restored courage. So God orders our path that we may not trust in ourselves but in Him who raises the dead. Do not be surprised, then, that a wave of heaviness has come upon you. The righteous are not promised exemption from affliction; indeed, it is impossible for the godly to be without trial, whether he be rich or poor. And yet in this very thing there is mercy, for God often removes what harms us, as a father banishes a corrupting mistress from his son. Wealth, comfort, human wisdom, these seem sweet but are full of hidden poison. It is easier for a camel to pass through the eye of a needle than for one laden with such things to enter the Kingdom. So if God has stripped you of some earthly consolation or allowed this inward darkness, do not rebel, but consider whether He is freeing you from slavery.
But you say, "My soul is crushed and I cannot bear it." Consider Joseph, firm as a rock against the seductions of Potiphar's wife, yet when he saw his brothers who had sold him, he was broken, softened, crushed; he wept and had to compose himself. If that great pillar of chastity and patience was moved to tears, do not condemn yourself for feeling the weight of sorrow. Christ Himself wept. Nature shrinks from suffering, as even Peter was told, "When you are old, you will stretch out your hands, and another will carry you where you do not wish." This unwillingness is not sin but the necessary pull of the flesh, ordered by God to prevent us from rushing to death too easily. Yet do not let sadness govern you; there is a mourning that is useful. Fasting and self-denial seem melancholy to the weak, but to those who practice self-command they become exceedingly pleasant. What the world calls madness, laying aside your own wisdom, becoming a fool for Christ, is the true path to peace. The wisdom of this world is foolishness with God. If you seek comfort in the counsel of the worldly, you will only wound yourself deeper, like a madman clutching a sword.
Therefore, examine yourself. Is there any unconfessed sin? Does this sadness come from an inordinate love of ease, possessions, or human praise? The Lord sometimes permits such cloudiness of mind to make the incorrigible feel their danger, just as He uncovered the traitor to amend him. Let this be a season to weep for your faults, to pour out your heart before God, and to embrace the narrow way. Do not murmur that God has forgotten you, for He cares for us more than we care for ourselves. The sun is not harmful because weak eyes cannot bear it; honey is not bitter because the sick taste it so. In the same way, when your soul is diseased, God's providence may seem dark, but it is good. Stand fast, compose yourself as Joseph did, and trust that after the night of weeping, joy comes in the morning. The Christian's whole life is this rhythm: despondency followed by gladness, that we may learn to set our hope entirely on the grace to be brought at the revelation of Jesus Christ.