Ruben G. Mendoza is on a quest for light.
The 54-year old archaeologist and professor of Social and Behavioral Sciences at CSU Monterey Bay is seeking the rarest of lights: Early morning rays of the solstice sun, channeled by a centuries-old alchemy of architecture and astronomy, geometry and awe, into brilliant tabernacle illuminations at California's missions.
It's a complex blend of solar geometry and Franciscan cosmology, says Mendoza, in which churches, windows and altars were laid out in relation to the sun's position on a particular day of the year.
Illuminations occur on solstice, equinox or feast day mornings, says Mendoza, with light entering through a particular window and illuminating the tabernacle or an altar bulto, or statue, of a saint in a brilliant column of light.