In the flat area of the portico façade, between the arched sixths and the band above, which is ordered with the theory of the saints, a series of spirals comes to life, with figures of various kinds. The eyes of the beholder are filled with wonder: a fascinating tree of life appears, almost as if by magic. The intertwining of the tree’s spiral structure starts with a female figure. The woman holds branches in her hands, winding from the left to the right and containing mythical figures from medieval bestiaries.
