What is nothing outside the heart?
Nothing outside the heart is a viewpoint put forward by Wang Yangming.
Personal understanding that there is nothing outside the heart means that people's behavior is caused by heart and mind. For example, if you see a beautiful woman or a handsome guy who is particularly beautiful, you will have all kinds of ideas about him, be moved, try to get close to her, try to contact him in various ways, then try to behave well in front of him, give him a good impression, and then try to establish a close relationship as much as possible.
The reason why I secretly love it and have a series of follow-up behaviors is because I have a beautiful heart. If we only consider the truth from one aspect, we can't remember any thoughts. No matter whether she is beautiful or ugly, she is just a person, without other colors of beauty and ugliness and subsequent behavior.
Another example is a person. If you meet him for the first time, this person gives you a good impression, and you are willing to make further contact with this person and even establish friendship. On the contrary, if this person gives you a bad first impression, then you will unconsciously reject him, find fault with him, or even stay away from him and alienate him. This is because your heart has changed the concept of good or bad standards from subjective consciousness.