O my brothers of the Hereafter! And O my companions in the service of the Qur’an! You should know—and you do know—that in this world sincerity is the most important principle in works pertaining to the Hereafter in particular; it is the greatest strength, and the most acceptable intercessor, and the firmest point of support, and the shortest way to reality, and the most acceptable prayer, and the most wondrous means of achieving one’s goal, and the highest quality, and the purest worship. Since in sincerity lies much strength and many lights like those mentioned above; and since at this dreadful time, despite our few number aand weak, impoverished, and powerless state and our being confronted by terrible enemies and suffering severe oppression in the midst of aggressive innovations and misguidance, an extremely heavy, important, general, and sacred duty of serving belief and the Qur’an has been placed on our shoulders by Divine grace, we are certainly compelled more than anyone to work with all our strength to gain sincerity. We are in utter need of instilling sincerity in ourselves. Otherwise what we have achieved so far in our sacred service will in part be lost, and will not persist; and we shall be held responsible.