Of the five elements. The first is water; the second is fire; the third, wood; the fourth, metal;
and the fifth, earth. The nature of water is to soak and descend; of fire, to blaze and ascend;
of wood, to be crooked and straight; of metal, to yield and change; while that of earth is
seen in seed-sowing and in-gathering. That which soaks and descends becomes salt;
that which blazes and ascends becomes bitter; that which is crooked and straight
becomes sour; that which yields and changes becomes acrid; and from seed-
sowing and in-gathering comes sweetness.