It is a famous proverb in our country that the sea is wide and the fish jumps, and the sky is high and birds fly. From Song Ruan's Collection of Turtles and Turtles (Volume 30), quoting ancient and modern poems, it is said that during the great calendar year of the Tang Dynasty, Yuan Lan, a Zen monk, wrote a poem on bamboo slips: "The sea jumps from fish, and birds can fly in the sky." This poem expresses the free and broad mind and lively Zen machine of Zen monks. Later, it was changed to "the sea is wide and the fish jumps, and the sky is high and birds fly", which means that you can move freely or display your talents freely. For example, in the eighty-fourth journey to the west, "old bodhisattva, the ancients said: the sea is wide and the fish jumps, and the sky is high and birds fly." Why is there no way to the west? " For example, in the third part of "Golden Sandstone": "Ah! The sea is wide and the fish jumps, and the sky is high and flying. Who wants to stay in a village! " It is also simplified to "broad sky". For example, Qingjiang Shiquan's "A Stone Banquet Pavilion": "I remember when Teng Wangge went down, the sky was high and wide." This is also a metaphor for rambling. For example, the first act of "Under the Roof of Shanghai": "After a while, Lin will come and talk endlessly."