VERILY, on the First Day We flung open the gates of Paradise unto all the peoples of the world, and exclaimed: `O all ye created things! Strive to gain admittance into Paradise, since ye have, during all your lives, held fast unto virtuous deeds in order to attain unto it.' Surely all men yearn to enter therein, but alas, they are unable to do so by reason of that which their hands have wrought. Shouldst thou, however, gain a true understanding of God in thine heart of hearts, ere He hath manifested Himself, thou wouldst be able to recognize Him, visible and resplendent, when He unveileth Himself before the eyes of all men.
XVII, 11.