You Sha Lake embodies Su Shi's humorous, free and easy, broad-minded and optimistic feelings. In "You Sha Hu", Su Shi prides himself on being "different" and is free and optimistic. Su Shi called himself "an idle person" in the night tour of Chengtian Temple, expressing his great sadness at being relegated. Su Shi and his friends have no job and no right to be idle, but their hearts are extremely sad and have nothing to say, but when Su Shi is unhappy, he can still be optimistic and enjoy himself in life.