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 layer of animal glue and "lamp black", all of the wax, and all of the overpainted areas were contamination of one sort or another: smoke deposits, earlier restoration attempts, and painted definition by later restorers in an attempt to enliven the appearance of the work. Based on this decision, according to Arguimbau's critical reading of the restoration data that have been provided, the chemists of the restoration team decided upon a solvent that would effectively strip the ceiling down to its paint-impregnated plaster. After treatment, only that which was painted "buon fresco" would remain. The only reproduction of the Sistine