Even if your heels fit perfectly, if you try running in them, they're probably going to slip off. Now that's with regular heels, so imagine that with slippery glass heels.
Spiral (From as far as I can see there are no spiral lines)
The answer is
Going to b either b or c. Most likely c
Generally,the vitrage,or stained glass technique was used to convey an idea of other worldliness. When a person would enter the cathedral,the light would shine through the windows and illuminate the interior,causing a colourful ambient that would leave the person feeling as though they had entered another world;the world of God. The principle in the Byzantine age was the same,except it was more so to signify the god like attributes of the rulers themselves.