A cul-de-sac is a dead end. If you get into one of those, you need to turn around, retrace your steps, and away you go (unless that was your intended destination.)
A quadrangle is an enclosed square, an open space, but within a building. Natural and artificial.
A mezzanine is a floating floor. It’s permanent, but it is not the ground floor, or any of the other integer numbered floors. It’s a kind of anomaly, but there it is, non-the-less, in your face!
Which brings me to quandary. It is a place that defies description, not sure what the bearings are, the way out, or even how you got there. Or how long the stay will be.
It probably is the best description of where the Church of England is. Don’t panic. No point moving on from here until we know exactly where we are, and where we want to be. And for precise bearings like those, we need to have the courage to take a Holy Spirit view. Collectively.