Explanation of the poetic meaning of the sign, it is the most difficult to swallow. Suddenly a disaster comes to the door, the eggs are broken and the nest is empty. I feel deeply sad.

The most difficult thing to swallow is the most difficult thing to swallow. Suddenly a disaster comes to the door, the eggs are broken and the nest is empty.

Meaning:

When you have conflicts with others, you tend to act out of anger. If you can't swallow this, you will cause trouble, and disasters will come to your door, even to the point of breaking up your family. Therefore, you should think of these things from the beginning, handle things steadily, and take a long-term view.