The Gothic style of the Torun castle manifests itself in numerous architectural details, a good example of which are the decorative, stepped and pointed-arch entrance portals from the cloisters on the first floor. They constitute the entrance to the representative rooms: the chapel, chapter house and refectory. In the chapel, the same decorative element was used in several points: a beautiful decorative vine, which appears on the archivolt of the entrance and on the capitals of the semicolumns. Despite the decorative plant styling, both the leaves with slightly marked veins and the grapes are presented quite faithfully with a lot of realism. An interesting procedure of repeating the same ornament may testify to both the sophisticated taste of the creator, the stonemason, and the need to emphasize the sacred meaning of the chapel through Christological symbolism.
The representations of the evangelists or scenes from the life of Christ (although still unidentified today) presented on the vaulted keystones of the Torun castle show the sacred program of the chapel. The religious meaning of the performances undoubtedly made it possible for concentration and contemplation during prayers. It also emphasized the role of knights as Milites Christi (knights of Christ and defenders of Mary), becoming one of the forms of Teutonic monastic propaganda.