The nats, or spirits, were dissociated from Buddhism in the XIc by King Anawratha of Pagan. He classified these heroes and martyrs into a list of 37 official nats. Their legends are re-enacted in plays and their images memorialised in wooden statues, bright coloured paintings (more recently, they have also been coming in concrete or plastic). Their representations, much venerated, are often gathered in a small building, set especially for them, in one corner of the temple where offerings are given to them. These spirits and their representations will be present all along your holiday in Myanmar.