Psychology**

This book analyzes Guan Yu's behavior and psychology from a psychological perspective, giving me a deeper understanding of him. I was also like Guan Yu, who kept his promise in love and never gave up easily even when faced with difficulties. The "commitment-unanimity" principle in the book made me understand that it is not that loyal people will not surrender, but their commitment and belief allow them to persevere to the end. This book made me think more about human nature, and also made me believe more that if you stick to your beliefs and commitments on the road to finding love, you will definitely find the right person.

Okay, okay, innuendo.

Psychology interprets history, which is very interesting! A novel angle!