Yao (y m 40) Yao (ti m 40) is a lady, and a gentleman is good at Yao (h m 40).
"Guanju" is the beginning, and the choice of scenery is typical. This poem uses the expression of "xing", which means that things come first, then things come. It was the singing of the osprey that led the author to pursue a lady. Similar phenomena have appeared in osprey fishing and male courtship. Use waterfowl fishing to imply sexual union.