What does the peach blossom outside the wall mean? line

Peach blossom is actually a heterosexual relationship. Most people with peach blossoms are heterosexual. Such people, whether ugly or handsome, have an inexplicable attraction to the opposite sex. Peach blossoms are good and bad, and there are different kinds. People who commit peach blossoms are generally beautiful and chic, which is a good side. In the era of three wives and four concubines, "peach blossom" specifically refers to women, so there are "inner" and "outer" peach blossoms.