How to answer when the other person says he is blind?

Express understanding first, and then provide help and methods. If the other person says he is blind, you can show your understanding of their feelings first. You can say, "I can understand how you feel now." If the other person regrets a specific thing, and you happen to have experience or suggestions in this area, you can help. For example, "I have been in a similar situation before, and I think ... will help you." Then remind each other that everyone makes mistakes, and it is important to learn from them and move on. For example, "We all make mistakes. The key is to learn from it and ensure that we will not make it again. "