Word Definitions
nhungo: upright roof poles
mbariro: thin or split poles that go round binding together the upright roof poles of the traditional hut
Translation
What used to be beams are now laths.
Inspiration
The main roof poles are larger and more hard-wearing than the thinner poles used for binding.
Application
Circumstances sometimes change for the worse and even that which was important could lose its worth. Sometimes you will encounter a poor man who used to be rich.