Theatricality, the use of light and shade, or colour, for dramatic effect in the painted or sculpted decoration of churches and in church architecture, was a language understood by many people during the Baroque era. Looking at these permanent, magnificent spettacoli sacri, or their temporary forms, prepared the faithful for religious festivities where spiritual, religious theatricality would be met in excess. Quadratura – illusory paintings – along with the other artistic tools were intended to elevate the viewer and open the minds of the faithful in order to meditate on and participate in the ecstasy of a saint and reach a visionary state in which to experience a humble devotion.