The porter’s lodge, also known as the pilgrims’ portal, was the space the friars used to celebrate Mass. Upon approaching the entrance portal of the convent, one can observe that the walls are decorated with paintings. These are called frescoes, as the technique used involved applying colored pigments onto freshly plastered walls so that the paint would be absorbed and last for a long time.

One of the scenes depicted on the northern wall is the Last Judgment. The inclusion of this theme reflects the missionaries’ emphasis on the fear of God, true conversion, and sincere repentance, all in light of the prophesied end of the world according to the Gospel of John.