When the dervish found he could not prevail upon Prince Bahman, and that he was obstinately bent to pursue his journey, notwithstanding his friendly remonstrance, he put his hand into a bag that lay by him and pulled out a bowl, which he presented to him. "Since I cannot prevail on you to attend to my advice," said he, "take this bowl and when you are on horseback throw it before you, and follow it to the foot of a mountain, where it will stop. As soon as the bowl stops, alight, leave your horse with the bridle over his neck, and he will stand in the same place till you return. As you ascend you will see on your right and left a great number of large black stones, and will hear on all sides a confusion of voices, which will utter a thousand abuses to discourage you, and prevent your reaching the summit of the mountain. Be not afraid; but, above all things, do not turn your head to look behind you, for in that instant you will be changed into such a black stone as those you see, which are all youths who have failed in this enterprise. If you escape the danger of which I give you but a faint idea, and get to the top of the mountain, you will see a cage, and in that cage is the bird you seek; ask him which are the Singing Tree and the Golden Water, and he will tell you. I have nothing more to say; this is what you have to do, and if you are prudent you will take my advice and not expose your life. Consider once more while you have time that the difficulties are almost insuperable."