If you were in the Mission on Saturday, you probably caught some part of the long procession of worshippers who walked 11 miles to the cathedral in San Francisco to honor the Virgin of Guadalupe. Saturday’s procession was sponsored by the Archdiocese of San Francisco, and on Dec. 12th Mission Dolores will hold its annual procession and mass in the Virgin’s honor. The Mission’s annual celebration takes place on December 12 because it was on that day in 1531 that a young Mexican boy, Juan Diego, saw the brown-skinned Virgin in Tepeyac, Mexico. She asked him to request that the bishop build a church there. Mission Dolores’s procession and mass will start at 4:45 a.m on Saturday.