For a long time, I was wondering why does Kabira cries when he observes stone-powered grinding machine working. What is in the two stones that is making kabira so emotional, so sad. What had he find in that spinning piece of stones. If you love listening, I fetched a youtube video that recites these beautiful verses.

चक्की चलती देख कर दिया कबीर रोई । दो पाटन के बीच में साबित बचा ना कोई ।।