Why is the mood a little sad when the weather is bad?

When the weather is good, my mood will follow, even if I am really unhappy. When the warm sunshine shines, my heart seems to be warmed. As if I saw someone's smile, I can tell myself that no matter how difficult the reality is, as long as I work hard, I will always wait until the sun comes. And when the weather is bad, the mood will become a little gloomy. The rain outside the gloomy window seems to isolate people in a small suite. All the feelings that extend to the outside are wet by the rain and fall heavily on the ground, so there will be a little sadness and loneliness. I don't know if people who want to think will think of themselves in the same world at the same time ... but there will always be something in case. Even if it is sunny, there may be residual snow hidden in the dark; Even after endless rain, there may be beautiful rainbows. So the weather and mood are not one-to-one correspondence. So just because the weather is good today doesn't mean you must be in a good mood ... There are no same leaves in the world, and there will be many ways and results for as many people as possible. Happiness is a day, sadness is also a day, laughter is a day, and crying is also a day. Happy is better than sad, and laughing is better than crying. But you can always smile; You can't control others, but you can control yourself; You can't completely predict tomorrow, but you can make full use of today; You can't ask everything to be smooth sailing, but you can do everything wholeheartedly. In life, we must be open-minded, because open-minded people can be optimistic and enterprising, and will not walk into a dead end. Be cheerful, because a cheerful self is likely to bring happiness to others and make the atmosphere of life more pleasant. O(∩_∩)O haha ~