“Everything is flowing -- going somewhere, animals and so-called lifeless rocks as well as water.  Thus the snow flows fast or slow in grand beauty-making glaciers and avalanches; the air in majestic floods carrying minerals, plant leaves, seeds, spores, with streams of music and fragrance; water streams carrying rocks.  While the stars go streaming through space pulsed on and on forever like blood...in Nature's warm heart.”    John Muir  (1911).