What does the sentence "It rained all night" mean?

When it rains all night, the house will leak.

"The house leaks when it rains all night, and the ship is late and meets the headwind." This sentence means that unfortunate things always follow, that is to say, unpleasant things always follow, which makes people feel stressed and difficult. Among them, "it rains all night" means that it rains all night, which further aggravates the difficulties and troubles; "The ship is late and meets the headwind" means that the ship is late and meets the headwind, which makes sailing more difficult and more energy-consuming.

This sentence expresses that unpleasant things happen constantly in life, which makes people feel helpless and distressed. At the same time, it also reminds people to maintain an optimistic and tenacious attitude in life, overcome difficulties and meet challenges.