From the walking guide we picked up at the Cathedral:
This building, the walls of which date from the late 11th century, was named after the first item of business at the daily monastic meeting – the Prior, from his throne, would read out a chapter of the rules of St Benedict. The current governing body of the Cathedral also takes its name from this.
The superb wagon-vaulted roof of c.1400 is made from Irish oak, and its decoration is typical of late English Gothic style. The two main windows are late Victorian, and the subject matter of one is mirrored in the other…
The right-hand picture is of an angled, mirrored table presumably allowing visitors to see the ceiling better. The 2nd window mentioned above, is opposite the one shown in my picture.