The "heart" in Buddhism has three meanings: first, the human heart belongs to the category of "body principle" and belongs to the color method; Second, it belongs to the category of "heart" (called "false heart" in Buddhism); Thirdly, Miao Ming's sincerity belongs to the category of "spirituality". In the Shurangama Sutra, it is said that our wonderful sincerity is "don't move the Rutaceae, stop the soil everywhere", don't move, don't shake, don't increase or decrease, don't live or die, and can't be understood by any tangible concept. When our delusions of sentient beings stop, wonderfulness and sincerity will naturally appear; In other words, "false heart" is caused by persistence; However, if all sentient beings can use their roots instead of their knowledge, the false heart will be transformed into the true heart, leaving the false heart to find the true heart, and treating the true heart and the false heart as two different things is a misunderstanding of the Buddha's meaning, just like ice is made of water. It is also wrong to throw away the ice to find water. Honesty is the body, which has its great use; If we see nature clearly and turn our troubles into bodhi, our modesty will turn into sincerity. Because of this, Buddhists say that "there is no way outside the heart, and there is no intention outside the law", that is to say, without the mirror of "heart", all laws cannot be reflected; If there is no omnipotent method, the "heart" cannot play its role in illuminating the sky and the earth.