As the cooling progressed, however, the steam that was in the upper atmosphere began to condense and to fall in rain. At first the hot drops no doubt sizzled as they fell and rose again immediately in vapour, yet the meteorological cycle was established notwithstanding. The rain that evaporated descended once more, each time colder and more abundant, until it cut channels amongst the crags, ground and polished their fragments into boulders and pebbles, formed pools in the hollows, and finally covered the earth up to its chin with the oceans. Much detritus meantime was washed down from the rocks; it gathered in crevices and along the pockets and slacker reaches of rivers. This sediment was soaked with moisture and mixed with dissolved acids; it became the first soft layer of earth and finally a fertile soil. Water in this way softened the outlines of the mountains, laid the floor of the valleys, and made a leafy and a cloudy place of the planet. The sages (and some of them much more recent than Thales) tell us that water not only wears away the rocks, but has a singular power of carrying away their subtler elements in solution, especially carbonic acid, of which the atmosphere also is full; and it happens that these elements can combine with the volatile dements of water into innumerable highly complex substances, all of which the atmospheric cycle carries with it wherever it goes; and with these complex substances, which are the requisite materials for living bodies, it everywhere fills the sea and impregnates the land. Even if life, then, is not actually born of the moist element, it is at least suckled by it; the water-laden atmosphere is the wet nurse, if not the mother, of the earth-soul. The earth has its soul outside its body, as many a philosopher would have wished to have his. The winds that play about it are its breath, the water that rains down and rises again in mist is its circulating blood; and the death of the earth will come when some day it sucks in the atmosphere and the sea, gets its soul inside its body again, turns its animating gases back into solids, and becomes altogether a skeleton of stone. No wonder that living creatures find things that are fluid and immersed in moisture friendly to the watery core of their own being. Seeds, blood, and tears are liquid; nothing else is so poignant as what passes and flows, like music and love; and if this irreparable fluidity is sad, anything stark and arrested is still sadder. Life is compelled to flow, and things must either flow with it or, like Lot's wife, in the petrified gesture of refusal, remain to mock their own hope. 4 THE TWO PARENTS OF VISION