Those seeking the sacred in art need look no further than composer La Monte Young and artist Marian Zazeela’s Dream House. Since 1993, the pair’s collaborative sound-and-light environment has dazzled both the expert and the merely curious, immersing visitors in Young’s droning tones and the luminous glow of Zazeela’s sculptures. While some stay in the space only a moment or two, others remain for hours, meditating, napping, daydreaming, and letting the potent radiance of the room reset their frequencies. A charge for the mind as much as for the eye and ear, the Dream House feels like a gift to our beleaguered city, where headspace is the most precious real estate of all. The Dream House reopened for its 22nd season on September 27; hours run from 2 p.m. to midnight, Thursdays through Sundays. Take off your shoes and stay awhile.