According to Netease Cloud Music, the lyrics of Joker Xue's "Regret" mean that there will always be some regrets in life. In the face of regrets, you may as well wave goodbye generously, and don't let regrets become a lifelong pain. Through the lyrics in Regret, people can feel Joker Xue's inner feelings. Joker Xue expressed his memories and thoughts of the past, but also showed his confusion and uncertainty about the future, and also expressed his attachment to a relationship.