Since the creation of the world, [an immortal stone] had been nourished for a long period by the seeds of Heaven and Earth and by the essences of the sun and the moon, until, quickened by divine inspiration, it became pregnant with a divine embryo. One day, it split open, giving birth to a stone egg about the size of a playing ball. Exposed to the wind, it was transformed into a stone monkey endowed with fully developed features and limbs.