What is the meaning of eternal marriage?

Immortal marriage is a kind of good and evil causal view of Buddhism on marriage, such as "one day husband and wife will last forever" and "crossing the boat through the ages and sleeping on the pillow through the ages". This view is not easy to verify, just to show that marriage is hard to come by and to persuade people to cherish it. Fortune-telling also holds this view, such as "husband and wife have been attached for generations, and XiShen intends to be rich." However, the actual deduction of fortune telling can't help people to find those eternal things. It is also very important to separate the relationship between nature and nurture and calculate marriage only by the eight characters of life. In this sense, the innate fate is called everlasting marriage, but the one that can be chosen by people the day after tomorrow is not called everlasting marriage.