In this Terry Vekris-designed Zen garden, a rectangular bed of raked gravel is edged in polished limestone and blue-black moonrock. The gravel, representative of a body of water, is raked into calming straight lines and in concentric circles, representing rippling movement around an &amp;#x201C;island&amp;#x201D; of low-growing juniper and three boulders. Photo: JOHN EVERETT