What did Saint Milarepa from Tibet & the Saint Niklaus von Flüe from Switzerland make a living from?

The example of the Saint Milarepa https://en.wikipedia.org/wiki/Milarepa “The stunning lesson in impermanence gave Milarepa the final push he needed to follow Marpa’s command to meditate in mountain retreat. He stayed there for many years, until his clothes turned to rags, his bones protruded, and the nettles he ate turned his skin green. Hunters and thieves …