Tau - Meaning and history

Saint Francis profesed a deep devotion to the TAU, which is mentioned by prophet Ezquiel (9,3-6), but also thie Apocalipsis (7,2-4). With this symbol, the saint signed his letters, but he also marked on walls, and performed healing miracles through it. Pope Innocent's speach reached Francis' soul, and from then on, he always kept it near him. For Saint Francis, a Tau was a reminder of penance, and protection from our Lord.