We're in Beverley Minster in Beverley, England, and we wanted to talk about the basic elements of a Gothic church. And probably the most basic element that identifies the Gothic style is the use of a pointed, not a round, a pointed arch. The pointed arch was a Gothic innovation that allowed Gothic architects to do what they really wanted to do, which was to build larger and brighter churches. Light was associated with God, with the divine. It's a perfect metaphor. Light has an almost magical quality in that it can pass through a solid, it can pass through glass. Romanesque churches, just before the Gothic period, required large thick expanses of wall to hold up the ceiling, usually a barrel-vaulted ceiling. So from the rounded barrel vault, the architects moved on to the groin vault. The weight of a round arch pushes outward and requires a lot of buttressing, a big solid wall underneath. The pointed arch redirects its weight more directly downward so that the supports can be thinner and can be more delicate. And the Gothic architects brilliantly realized that that innovation would allow them to be able to have less wall and more window. The weight of the vault didn't need to come down onto continuous walls but could come down onto four columns, opening up not just the walls to windows, but opening up the very space of the church itself. We might ask them, how is the stone vaulting held up? And the answer can be found in two places. First, if you look in between the glass, you can see a major structural element which comes down to the nave in the form of a pier. Now, Gothic architects camouflaged the massiveness of their piers by ornamenting them with delicate thin colonettes. But this was a massive object that helps to support the stone vaulting above. But there's another structural system that's at work. Even with the pointed arch, the vaulting of these churches still created lateral thrust that pushed outward. And so the building had to be contained, it had to be supported from the outside, it had to be buttressed. And that's where we see one of the great features of Gothic architecture, the flying buttress, essentially a bracing in between the windows on the outside of the church. And because they are relatively delicate and pierced, they allow light to get to the windows to flood the interior with brightness. When we look up along the wall of a typical Gothic church, we usually see three parts. We see the pointed arches that form the nave arcade, we see above that the triforium, and then above that, the clerestory, the level with windows. When we look at the triforium, even there, we see the wall is pierced. Here in Beverley Minster, we see trefoil- shaped arches and within that trefoil arch, we see a quatrefoil, and then below that yet another level of opening of these short, pointed arches that are separated by columns. So this layering that allows the wall to have a sense of depth. All of this brings our eye upward. It emphasizes the heavenly. The intent of the Gothic church is to create a sense of the heavenly on earth. If you imagine a typical person's home in the 13th century, we imagine something rather dark and without a lot of windows. And so coming into a space like this must have seemed truly miraculous. It's even difficult, I think for us in the 21st century to imagine the workmanship, the decades of labor and the enormous costs that went into these buildings as places of worship, of places of connection to the divine.