spirit_rock_meditation_center
The 25-year-old meditation center in San Geronimo Valley, which sees 40,000 visits a year, is raising money for a three-phase construction project that will replace trailers with permanent halls and offices.   David Briggs

The path through Spirit Rock Meditation Center starts on a stretch of Sir Francis Drake Boulevard that is flanked by a golf course on one side and grazing cattle on the other. The long, ascending driveway crosses over a wooden bridge, passes a yellow “Yield to the Present” sign and continues beyond a parking lot hedged by cautious turkeys. It winds northwest, along a trio of semi-permanent trailers that house the community meditation hall, the…