We figured out the procession would go to a large church (16th century spanish inglesia), one which we go to everyday to see what is happening. The woman said come and take pictures.  All this happened in sign language and with us not having a clue what was happening. Beginning at 4pm we went and sat outside and watched a crowd materialize, bringing beautiful velvet banners of many different sizes, from 4 or 5 feet to maybe 15 feet tall, with pictures of saints and tassels and sparkle. Tiny shots of mezcal or tequila were poured, served along with a big glass of jamaica.