A shrine that receives votive offerings becomes, over time, a database. The walls of the sanctuary at Epidaurus carried inscribed tablets narrating cures; archaeologists have recovered from Greek and Italic sanctuaries whole strata of terracotta body parts, arms, feet, eyes, ears, wombs, each recording that someone's arm, foot or eye was healed, or hoped to be. The Christian ex-voto continued the genre. Mexican retablos, small paintings on tin, follow a strict grammar: the disaster below, the saint above, and a text beginning with thanks, naming the person, the date and the peril survived, the fall from the horse, the operation, the border crossing.
Greek Orthodox tamata stamp the same vocabulary into silver: a leg, a heart, a ship, a marriage. Read singly, each object is a private receipt; read in accumulation, they are the community's statistical theology, a visible record of what people asked for, which is to say what they feared, and of the shrine's reputation for answering, each new offering both testimony and advertisement.
Scholars mine them accordingly: votive deposits map ancient medicine's complaints, retablo archives document migration and epidemic, and the changing inventory of tamata tracks a community's anxieties across generations. The practice thus performs a double function no liturgy assigns it: it lets the ordinary faithful write themselves into the sanctuary, and it leaves historians the rarest of sources, religion recorded from below, one answered prayer at a time.