In this Dharma Talk we look into Huang Po's One Mind. 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, measures, 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.  

Full transcript at: https://zenawakened.com/