Origin is empty, which is the law of karma. Birth and death. Birth and death are impermanent, there is no reality, so the nature is empty;

Knowing everything means that all appearances are ignorance and delusion generated by the heart, idealism exists and knowledge changes;

Not outside the heart. Buddhism is a kind of mental method. I practice Buddhism and mind, not from the outside, but from the outside, not from the outside, but from the outside.

One multi-phase, that is, pericardium has various methods, which come from one heart. One more equals the Tathagata.

If you can understand it, you have a good foundation. If you don't understand, work hard and lay a good foundation.