Drifting on the warm Pacific at the west shore of the big island of Hawaii I gazed through the clear view of my mask at all the many sorts of colorful fish amidst the canyons of coral.  Sound, once below water, is a different world.  Clicks and clacks can travel far and fast in water.  The sound of my unusual form of breathing, my teeth gripping the rubbery snorkel, rushed into my ears, not masking the tremendous quiet of their realm – the fishes and…