"If the heart is not dead, the Tao will not be born" comes from Chapter 25 of the Tao Te Ching. What it means is that if the mind does not die, then the Word will not come into being. This is a famous quote from the Tao Te Ching that emphasizes the importance of the mind. It warns people to keep their hearts clear and firm, and not to be shaken by external temptations and difficulties. Only in this way can they achieve the true moral realm.