In contrast to the highly decorated Nativity Façade, the Passion Façade is austere, plain and simple, with ample bare stone, and is carved with harsh straight lines to resemble the bones of a skeleton. Dedicated to the Passion of Christ, the suffering of Jesus during his crucifixion, the façade was intended to portray the sins of man. Construction began in 1954, following the drawings and instructions left by Gaudí for future architects and sculptors. The steeples were completed in 1976, and in 1987 a team of sculptors, headed by Josep Maria Subirachs, began work sculpting the various scenes and details of the façade. They aimed to give a rigid, angular form to provoke a dramatic effect. Gaudí intended for this façade to strike fear into the onlooker. He wanted to "break" arcs and "cut" columns, and to use the effect of chiaroscuro (dark angular shadows contrasted by harsh rigid light) to further show the severity and brutality of Christ's sacrifice.