Blessed are those who wage war with their inner selves for the sake of God. And wretched are those who war with God for the sake of their own souls, and act against His will. He who ignores the will of God for the sake of his inner self will never enter heaven. Strive hard so that not even a single dot or iota of the Holy Quran may testify against you and cause you to be punished. For even the smallest particle of evil is punishable. Time is short and there is no telling how long one shall live. Make haste—for twilight will soon descend. Consider over and over what you shall present before God, lest it be deemed so inadequate that it is no more than waste, no more than a foul and defiled offering unfit for presentation before the Royal Court.
(Hazrat Mirza Ghulam Ahmadas, Noah’s Ark, pp. 42-43)