Meditation and Dharma Talk with Yushin Tipton: Right Effort
The Fourfold Right Diligence is nourished by joy and interest. The Buddha asked the monk Sona, "What happens if the string of your instrument is too loose?" "When you pluck it, there will be no sound," Sona replied. "What happens when the string is too taut?" "It will break." "The practice of the Way is the same," the Buddha said.