Thinking of you is like a bright candle, burning my heart and bringing tears to my eyes. In the second half of Su Shi's life, he was exiled twice and was framed by villains. When he was sleeping on the bed and couldn't sleep, the depression in his heart was naturally difficult to calm down. Therefore, he used two wonderful metaphors to express the changing world and human feelings. After reading it for thousands of years, it still makes people feel deeply.