Huang Po - Mind is Buddha

In the teaching of the Three Vehicles it is clearly explained that
the ordinary and Enlightened minds are illusions. You don't
understand. All this clinging to the idea of things existing is to
mistake vacuity for the truth. How can such conceptions not be
illusory? Being illusory, they hide Mind from you.

If you would only rid yourselves of the concepts of ordinary and
Enlightened, you would find that there is no other Buddha than the
Buddha in your own Mind. When Bodhidharma came from the West, he
just pointed out that the substance of which all men are composed is
the Buddha. You people go on misunderstanding; you hold to concepts
such as "ordinary" and "Enlightened," directing your thoughts
outwards where they gallop about like horses! All this amounts to
beclouding your own minds!

So I tell you Mind is the Buddha. As soon as thought or sensation
arises, you fall into dualism. Beginningless time and the present
moment are the same. There is no this and no that. To understand
this truth is called complete and unexcelled Enlightenment.