What does it mean if bridges continue to be broken, mountains are not isolated, and bridges are not long?

The original sentence "Broken bridges are constantly broken, lonely mountains are not lonely, and long bridges are not long" means: Broken bridges are not broken, lonely mountains are not lonely, and long bridges are not long.

The original sentence is from Feng Menglong's "A Warning to the World" in the late Ming Dynasty. If the bridges continue to be broken, the heart will be broken; if the mountain is not lonely, the king's heart is lonely; if the bridge is not long, the friendship will last.

Explanation: Broken Bridge refers to Xu Xian’s White Snake. Gushan refers to Lin and Jingmei's wife Hezi. Long Bridge means that Liang Zhu said goodbye and saw each other off at Long Bridge.

Story introduction:

It describes the tortuous love story between a snake spirit who cultivates into human form and a human. The story includes the story of borrowing an umbrella from a tented boat, the white lady stealing Ganoderma lucidum, flooding the Jinshan Mountain, the broken bridge, Leifeng Pagoda, Xu Xian's son Shilin offering sacrifices to the pagoda, Fa Hai escaping into the belly of a crab to escape death, etc. It expresses the people's praise and yearning for the free love between men and women and their hatred for the unreasonable restraint of feudal forces.