From the Sayings of Light and Love by St. John of the Cross:

#56: “The soul that journeys to God, but does not shake off its cares and quiet its appetites, is like one who drags a cart uphill.”

#57: “It is not God’s will that a soul be disturbed by anything or suffer trials, for if one suffers trials in the adversities of the world it is because of a weakness in virtue. The perfect soul rejoices in what afflicts the imperfect one.”