The main stone, log, and glass structure of this retreat, designed by Sim van der Ryn, is sunk into a stony, southwest-facing hillside. The central kitchen with its greenhouse extension is the heart of the complex, which includes an earth-sheltered library under a pyramidal skylight and a two-story polygonal guest wing on the west. Farther up the hill is the meditation and ceremonial building, designed by Keith Critchlow, with two joined domes covered by rolled roofing over a framework of arched timbers. The timbers rise at oblique, intersecting angles to a central fiberglass skylight. Lack of windows makes the structure introspective, as are the smaller retreats surrounding the two main structures and a 41-foot-high stupa. Built as the Lindisfarne Celtic Monastery, it became a retreat for Zen Buddhists who fled the 1959 Chinese takeover in Tibet.