In the middle of the maze is a cross, around which the thing is coiled. This cross is bent at the top, either way, no matter. Think of it as the letter R standing on top of a T. This spells Tau-Rho in Greek letters, which give Tauro, Troia, and I believe is the basis of the Minotaur story, as well as the name for the maze, Troy town, at Tragliatella, Trojaburgen, Trojeborg, etc. Geoffrey Russell has suggested that the maze contains the Chrismonogram. Rather, I think the Tau-Rho monogram probably influenced the early form of Chi-Rho, such as appears in the Cathach of Columba and northern stone carving of that period.