The Holistic Justice Center in Middlebury sounds as if it might be a place to chant, burn incense and gaze at crystals. Instead, this prosaic one-room office above a mortgage company accommodates attorney William van Zyverden's legal practice. No posters depicting Buddha or medicinal herbs on his bare walls. "My new age-iness is inner," says van Zyverden, a lanky, bespectacled 50-year-old with salt-and-pepper hair. Well, maybe not entirely. The Addison home he shares with writer Shari Charron, who once owned a metaphysical bookstore, does have a large backyard labyrinth for contemplative purposes. The couple also coordinates Living the Great Life, a spiritual discussion group that periodically screens inspirational films for the general public. (See box.) While jurisprudence remains van Zyverden's bread and butter, the name of his one-man law firm is a bit ethereal.