Mangrai built Wat Chiang Man first and named it for being secure. He built this one next and named it for lasting.
It is the เดชเมือง — the city's standing. A lord coming to rule Chiang Mai, or a lord riding out to a war, stopped here, changed his robes, and paid respects to the principal image before he went through the gate. Governors still come.
Outside the wall, north, on the road the army used.
A tray, in the name of somebody who held an office and had to hand it on. It is what the place is for.