mapfihwa: large stones used to support a pot over a fire.
When those in the mountains ask for hearthstones from those below, it is merely showing off.
Inspiration for Proverb
Mountains are large masses of rock and soil, and have lots of loose rock pieces. People carefully select suitable stones to use as mapfihwa.
It seems like mockery when one who has adequate means suggests he could do with help from those who have less.