they exercised their bulky mass in calisthenics , in ample lunges across the sky , in flexing their bulging biceps and building themselves up , building smooth sinews of gorgeous gray , that , in occasionally open attitudes , revealed steely shades of blue which formed the bulging veins on their brawn , their bloated bodies sopping with life-giving water that we , the worlds desert dwellers , greedily anticipated , hungrily awaited , and then finally , fearfully and fretfully , doubted .