墨は餓鬼に磨らせ、筆は鬼に持たせよ

すみはがきにすらせ、ふではおににもたせよsumihagakinisurase、fudehaoninimotaseyo

expression

1. grind your inkstick gently but move your brush vigorously
2. let the hungry ghost grind your inkstick, let the ogre hold your brush

Study it in Yanamino