ok - typical of a New York presentation.. focusing on the monetary values.. yes, indeed, there are spiritual retreats, and in special lands with wide vistas.. but why? and who? not "how much"
For a less financially-focused treatment of this very real topic, please see "Visionary State" by Erik Davis
The Visionary State: A Journey Through California's Spiritual Landscape
Highly recommended for anyone interested in religion, spirituality, mysticism, gnosticism, counterculture, high weirdness, psychedelics, or the occult.
Thanks for sharing that book--just purchased. I moved to the Bay Area three years ago and just had a realization that I've barely explored the surrounding landscape.
If you're in san jose/santa cruz check out Henry Cowell. If you're in the peninsula/silicon valley check out Wunderlich Park. If you're in the city/marin, check out Muir Woods.
For a less financially-focused treatment of this very real topic, please see "Visionary State" by Erik Davis
The Visionary State: A Journey Through California's Spiritual Landscape
https://en.wikipedia.org/wiki/Erik_Davis