Sistine Chapel ceiling Church as the agent of God. To be outside the Church was to be beyond "Salvation". In the ceiling of the Sistine Chapel, Michelangelo presented both Catholic and Humanist elements in a way that does not appear visually conflicting. The inclusion of "non-biblical" figures such as the Sibyls or "Ignudi" is consistent with the rationalising of Humanist and Christian thought of the Renaissance. This rationalisation was to become a target of the Counter Reformation. The iconography of the ceiling has had various interpretations in the past, some elements of which have been contradicted by modern scholarship. Others, such as the
Sistine Chapel congregations. These included the Christmas Day and Easter masses, at which the Pope himself was the celebrant. The other 27 masses could be held in a smaller, less public space, for which the "Cappella Maggiore" was used before it was rebuilt on the same site as the Sistine Chapel. The "Cappella Maggiore" derived its name, the Greater Chapel, from the fact that there was another chapel also in use by the Pope and his retinue for daily worship. At the time of Pope Sixtus IV, this was the Chapel of Pope Nicholas V, which had been decorated by Fra Angelico.