When it rains and clears at first, the flowers fall, and I feel idle and bored. What does it mean that the days are longer?

"When it rains and clears at first, the flowers fall by themselves, and the days of leisure and boredom are longer." The meaning of the poem can be understood in this way: Where do sorrow and boredom come from? ——Xian, Xian, I don’t know where it comes from, and I don’t know when it started. When I see the flowers falling, I unconsciously have a depressed feeling. These two lines of poems are full of regret and melancholy for the loss of beauty, and express the cherishment of beautiful life.