This building, the "Red Chapel", sits just to the southwest of the temple's main hall. It houses a 2m image of a reclining Buddha that's considered to be one of the most important in all of Laos. The mosaic tiling covereing the building's exterior depicts scenes from daily Laotion life.
I have no special insight to share here. I just thought the Buddha statue sitting in front of the mosaic tiling made for a beautiful image! This photo was taken inside the Carriage House on the grounds of Xieng Thong Temple.
It's tradition for all Lao male Buddhists to serve as monks at some point in their lives, even if it's only for a short period of time. Seeing them move to-and-fro in their orange robes is a farily common sight when visiting these temples.