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He keeps track of where everything is happening and whats going on on that map.

Credit: HBO
Its a weird little working machine.
Wall and his team at design studio Elastic invented the backstory for this disquisitive monk.
Wall explains: I always have to invent a story behind stuff.
It defined our language, says Shintani.
So we tried to stay away from modern technology and wanted to ground it.
That was a way for us to ensure we were on point with our design.
Ever notice how the maps water is made of cloth?
The pop-up cities made of handcrafted wood?
The Wall vaguely ice-related or something?
Very clever, monks.