Marriage is hard to decide. What do you mean, lost things go far?

"Marriage is hard to decide, and the lost things go far" is a divination language, which means: I am always uncertain about marriage, just like I can't find the lost things. This sentence implies that there may be twists and turns in the marriage relationship, which needs hard work and careful handling, and don't give up easily. This also means that what is lost may be found in the distance.