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Hui Neng, the 6th Patriach said:
"Having no wrong in the Buddha-nature is true morality,Having no ignorance in the Buddha-nature is true wisdom,Having no distraction in the Buddha-nature is true concentration.Neither increasing nor decreasing makes it adamantine,Whether coming or going it always remain in Samadhi."As we know, the 3 foundations of the path to Nibbana is Sila (morality), Samadhi (concentration) & Panna (wisdom). What exactly are they? Most Buddhists believe that following and not breaking the percepts is called Sila, practicing meditation & attaining Jhana is called Samadhi, and developing insight from the basis of Samadhi is called Panna. When Sila, Samadhi & Panna completely overcome the defilements in the mind, one realizes Nibbana. That is a very literal way of understanding the Dhamma, suitable for those who have not transcend duality.
However, when one realizes the non-duality of the absolute truth, one will see that the Buddha-nature is fundamenally pure and cannot be defiled - that is Sila.
Knowing that the true mind is immovable, the passions are stilled and one no longer any positive or negative emotions towards one's sensory experiences - that is Samadhi.
Seeing the purity of the Buddha-nature, yet not clinging to any concept of purity; knowing the immovablity of the true mind, yet not clinging to any concept of immovablity; such that one can perceive & differentiate all phenomena, yet never becoming attached to anything at all - that is Panna.
Understanding that the 3 foundations are fundamentally empty and that there is nothing to cultivate or attain is called the Equal Application of the 3 foundations. If you can practice the Dhamma in this way, then you are no different from the Buddha.