“But at what point, sir, does the mortification in disgust of sin reach the peak and the pith? Please help me reach the peak and the pith!”

“Nigrodha, take a mortifier who is restrained in the fourfold restraint. And how is a mortifier restrained in the fourfold restraint? It’s when a mortifier doesn’t kill living creatures, doesn’t get others to kill, and doesn’t approve of killing. They don’t steal, get others to steal, or approve of stealing. They don’t lie, get others to lie, or approve of lying. They don’t expect rewards from their practice, they don’t lead others to expect rewards, and they don’t approve of expecting rewards. That’s how a mortifier is restrained in the fourfold restraint.

When a mortifier has the fourfold restraint, that is their mortification. They step forward, not falling back. They frequent a secluded lodging—a wilderness, the root of a tree, a hill, a ravine, a mountain cave, a charnel ground, a forest, the open air, a heap of straw. After the meal, they return from alms-round, sit down cross-legged with their body straight, and establish mindfulness right there. Giving up desire for the world, they meditate with a heart rid of desire, cleansing the mind of desire. Giving up ill will and malevolence, they meditate with a mind rid of ill will, full of compassion for all living beings, cleansing the mind of ill will. Giving up dullness and drowsiness, they meditate with a mind rid of dullness and drowsiness, perceiving light, mindful and aware, cleansing the mind of dullness and drowsiness. Giving up restlessness and remorse, they meditate without restlessness, their mind peaceful inside, cleansing the mind of restlessness and remorse. Giving up doubt, they meditate having gone beyond doubt, not undecided about skillful qualities, cleansing the mind of doubt.

They give up these five hindrances, corruptions of the heart that weaken wisdom. Then they meditate spreading a heart full of love to one direction, and to the second, and to the third, and to the fourth. In the same way above, below, across, everywhere, all around, they spread a heart full of love to the whole world—abundant, expansive, limitless, free of enmity and ill will. They meditate spreading a heart full of compassion … They meditate spreading a heart full of rejoicing … They meditate spreading a heart full of equanimity to one direction, and to the second, and to the third, and to the fourth. In the same way above, below, across, everywhere, all around, they spread a heart full of equanimity to the whole world—abundant, expansive, limitless, free of enmity and ill will.

What do you think, Nigrodha? If this is so, is the mortification in disgust of sin purified or not?”

“Clearly, sir, it is purified. It has reached the peak and the pith.”

“No, Nigrodha, at this point the mortification in disgust of sin has not yet reached the peak and the pith. Rather, it has only reached the bark.”