Our nature is the mind
Our nature is the mind. And our mind is our nature. This nature is the same as the mind of all buddhas. Buddhas of the past and future only transmit this mind. Beyond this mind there’s no buddha anywhere. But deluded people don’t realize that their own mind is the buddha. They keep searching outside. They never stop invoking buddhas or worshipping buddhas and wondering, Where is the buddha? Don’t indulge in such illusions. Just know your mind. Beyond your mind there’s no other buddha. The sutras say, “Everything that has form is an illusion.” They also say, “Wherever you are, there’s a buddha. Your mind is a buddha; don’t use a buddha to worship a buddha.
– Bodhidharma, Bloodstream Sermon, trans. Red Pine p.25