Some days before the day ends, gloomy clouds cover up the sky. But it doesnt mean that you will end up your day badly. The sunlight sets in someone else's eyes and brighten up your own.
So never frown, when you see the clouds, dont feel gloomy. They might be there for someone else's.
Just smile a bit and dont let your day end up lousily cause maybe tomorrow, you may bring a little sunshine in someone else's world.