What is Guan Ju's narrative clue?

Men pursue women, but they can't. They fantasize about themselves. The clue of Guan Ju's poems is that men fall in love with my fair lady and pursue her, but they can't. They are imaginary "friends" and "happiness". Nan Zhou Guanju is the first poem in The Book of Songs, the first poetry collection in ancient China. It is generally believed that this is a love song describing the love between men and women. In the first chapter of this poem, the birds are singing and falling in love, which arouses the association between ladies and gentlemen.