To care passionately for another human creature brings always more sorrow than joy; but at the same time, Elinor, one would not be without experience. Anyone who has never really loved has never really lived.
In God, there is no sorrow or suffering or affliction. If you want to be free of all affliction and suffering, hold fast to God, and turn wholly to Him, and to no one else. Indeed, all your suffering comes from this: that you do not turn toward God and no one else.