If you conceive of the Buddha in terms of the characteristics of purity, brilliance, and liberation, and if you conceive of sentient beings in terms … - Huangbo Xiyun

All the Buddhas and all sentient beings are nothing but the One Mind, beside which nothing exists. This Mind, which is without beginning, is unborn and indestructible. It is not green nor yellow, and has neither form nor appearance. It does not belong to the categories of things which exist or do not exist, nor can it be thought of in terms of new or old. It is neither long nor short, big nor small, for it transcends all limits, measure, names, traces and comparisons. It is that which you see before you - begin to reason about it and you at once fall into error. It is like the boundless void which cannot be fathomed or measured. The One Mind alone is the Buddha, and there is no distinction between the Buddha and sentient things, but that sentient beings are attached to forms and so seek externally for Buddhahood. By their very seeking they lose it, for that is using the Buddha to seek for the Buddha and using mind to grasp Mind. Even though they do their utmost for a full aeon, they will not be able to attain it. They do not know that, if they put a stop to conceptual thought and forget their anxiety, the Buddha will appear before them, for this Mind is the Buddha and the Buddha is all living beings. It is not the less for being manifested in ordinary beings, nor is it greater for being manifest in the Buddhas.

The master said to [Pei] Xiu: The Buddhas and all the sentient beings are only the One Mind—there are no other dharmas. Since beginningless time, this mind has never been generated and has never been extinguished, is neither blue nor yellow, is without shape and without characteristic, does not belong to being and nonbeing, does not consider new or old, is neither long nor short, and is neither large nor small. It transcends all limitations, names, traces, and correlations. It in itself—that’s it! To activate thoughts is to go against it! It is like space, which is boundless and immeasurable.

Trainees who wish to achieve Buddhahood [should understand that] it is completely useless to study any of the Buddhist teachings—just study nonseeking and nonattachment. Nonseeking is for the mind (i.e., moments of thought) not to be generated, and nonattachment is for the mind not to be extinguished. Neither generating nor extinguishing—this is Buddhahood. The eighty-four thousand teachings are directed at the eighty-four thousand afflictions and are only ways to convert and entice [sentient beings into true religious practice]. Fundamentally all the teachings are nonexistent; transcendence is the Dharma, and those who understand transcendence are Buddhas. By simply transcending all the afflictions, there is no dharma that can be attained.