Chuang Tzu: Mystic, Moralist, and Social Reformer

In the northern ocean there is a fish, called the Leviathan, many thousand li in size. This leviathan changes into a bird, called the Rukh, whose back is many thousand li in breadth. With a mighty effort it rises, and its wings obscure the sky like clouds. At the equinox, this bird prepares to start for the southern ocean, the Celestial Lake. And in theRecord of Marvels we read that when the rukh flies southwards, the water is smitten for a space of three thousand li around, while the bird itself mounts upon a typhoon to a height of ninety thousand li, for a flight of six months' duration. Just so are the motes in a sunbeam blown aloft by God. For whether the blue of the sky is its real colour, or only the result of distance without end, the effect to the bird looking down would be just the same as to the motes. Distance being relative. The rukh at an altitude of 90,000 li (three li to a mile) is no more than a mote in a sunbeam a few feet from the ground. If there is not sufficient depth, water will not float large ships. Upset a cupful into a small hole, and a mustard-seed will be your boat. Try to float the cup, and it will stick, from the disproportion between water and vessel. So with air. If there is not a sufficient depth, it cannot support large birds. And for this bird a depth of ninety thousand li is necessary; and then, with nothing save the clear sky above, and no obstacle in the way, it starts upon its journey to the south. A cicada laughed, and said to a young dove, "Now, when I fly with all my might, 'tis as much as I can do to get from tree to tree. And sometimes I do not reach, but fall to the ground midway. What then can be the use of going up ninety thousand li in order to start for the south?"

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