一个瞎子在路上走。另外一个人过来把他引上正路。可是瞎子却不知道他的指路人是谁。一个人正在酣睡。忽然一条毒蛇昂着头向他爬了过来。另一个人赶过来一刀把毒蛇杀死。可是酣睡者却依然在梦中。当半夜时分,躺在清真寺里生病的旅行者发出沉重呻吟的时候,有一个人一直服侍他到? A blind man walks on the road. Another person came to him to lead the way. But the blind man did not know who his guide was. One is sleeping. Suddenly a poisonous snake climbed over his head with his head. Another man rushed over to kill the venomous snake. But sleepers are still in their dreams. At midnight, when a sick traveler lying in a mosque made a heavy embarrassment, does one person always serve him?