What does Gai Hua mean in "Rizhu"?

What does Gai Hua mean in "Rizhu"? He has special talent and insight. He usually has extraordinary beliefs, withdrawn and introverted personality, which may give people a sense of arrogance, but he is very smart and has a strong interest in advanced fields such as calligraphy, Yijing and divination. This kind of person likes to be alone, tends to be celibate, has average interpersonal relationship and few friends. If Japanese Gai Hua people enter the official career, they may make remarkable achievements and occupy senior positions. Emotionally, due to its unique personality, it may encounter suitable opportunities. In addition, Gai Hua's life in Rizhu had a positive impact on his artistic and literary accomplishment, which made him show his talents and achievements in these fields.