Koan
Polishing a tile
Mazu sat in meditation all day. Nanyue began rubbing a tile on a stone. "What are you doing?" "Polishing a tile to make a mirror." "How can polishing a tile make a mirror?" "How can sitting make a Buddha?"
Traditional story of Nanyue and Mazu
How to sit with it
Sit without trying to become anything. Two minutes with no goal at all.
Read it once more, slowly. Then sit for two minutes and let it stay in the background. There is nothing to solve. New to this? Read what a koan is.