Samu is manual work done with the same concentration as zazen. All masters of transmission, especially Master Hyakujo (720-814), have insisted on this. Even in his old age, Master Hyakujo worked every day in the field with his students. One day, they hid his tools, thinking that their master should spare himself. Hyakujo declared: “A day without working, a day without eating.†And he stopped eating until his disciples gave him back his tools.
In zen, work has great value, because it allows us to practise the Way in action. In the dojo and during retreats (sesshins), zazen is followed by samu, which is when we do the chores to ensure the smooth functioning of communal life. Samu also means putting our efforts at the service of the community, without expecting anything in return.