If worshipping stones leads one to God, then I shall worship a mountain. This grinder is truly good, for it sustains the world.

When Kabir speaks, he is gently criticizing the tendency to worship mere idols or stones, believing they will lead one to God. He suggests that instead of ritual, we should focus on the grandeur of nature, like a mountain. The final line, comparing life to a grinding mill, is a profound reminder that the world operates through necessary, cyclical processes, which is the true sustenance.