In keeping with traditional practice, the teacher does not charge a fee for teaching but lives by Dana (the generosity of students). Dana is a Buddhist teaching about giving and receiving, about generosity and thankfulness, and the interdependence of all beings. It is not a tip or gratuity but is often the teacher's only source of livelihood. It is left up to the participants to assess their own circumstances and to give accordingly, as generously as possible. While in retreat, a suggested amount is $30 per day; this is only a guideline. The Dana is placed in an envelope and then in the bowl anonymously. No one is ever turned away because of lack of funds.