Armchair Practitioners

Deluded people chant this with their mouths, the wise practice it with their minds. There are also deluded people who call having an empty mind and not think 'great.' But that isn't how this works. The capacity of the mind is great, but if you don't use it, it's small. If you merely talk about emptiness with your mouth, but you don't practice this practice, you're no disciple of mine.

---The Platform Sutra---