Sistine Chapel ceiling how the work progressed. It was customary for fresco painters to use a full-sized detailed drawing, a "cartoon", to transfer a design onto a plaster surface—many frescoes show little holes made with a stiletto, outlining the figures. Here Michelangelo broke with convention; once confident the "intonaco" had been well applied, he drew directly onto the ceiling. His energetic sweeping outlines can be seen scraped into some of the surfaces, while on others a grid is evident, indicating that he enlarged directly onto the ceiling from a small drawing. Michelangelo painted onto the damp plaster using a wash technique to apply
Sistine Chapel ceiling various components of the ceiling are linked to this Christian doctrine. Traditionally, the Old Testament was perceived as a prefiguring of the New Testament. Many incidents and characters of the Old Testament were commonly understood as having a direct symbolic link to some particular aspect of the life of Jesus or to an important element of Christian doctrine or to a sacrament such as Baptism or the Eucharist. Jonah, for example, was readily recognisable by his attribute of the large fish and was commonly seen to symbolise Jesus' death and resurrection. While much of the symbolism of the ceiling dates