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Small paper on light and shadow experiment
Green mountains and green waters depend on each other, the bright moon is accompanied by stars, and the white clouds are accompanied by the breeze. Everything in the world has its companion, but it is a shadow that never leaves the light.

When the creator created this world, he gave light and shadow to mankind at the same time. Therefore, when you wander in the cold winter, you can expect the warmth of the sun; When you stand in the hot summer, you will miss the coolness of the shadow. The first ray of sunshine at dawn is always particularly beautiful, because it is set off by the night; The night under the starlight is particularly charming, because it is decorated with starlight. It can be said that the Lotus Pond written by Zhu Ziqing reflects a picture of the real world: "Light and shadow have a harmonious melody, just like a famous song played in the Vatican." However, when this game of light and shadow is staged in the spiritual world, we will not be so relaxed. Once the sunshine of life disappears before your eyes, the shadow will remain in your heart forever; Let your heart be full of sunshine, and the shadow will be trampled under your feet.

"Only a faint light, even the light that seems to be extinguished by darkness at any time, can inspire me to walk a long way"-this is what Ba Jin is talking about. What an era he was in! The sea is flowing, the wind and rain are gloomy ... it is inevitable that people can't see the future and hope. At this time, we need to light a lamp ourselves. Although its shimmer can't penetrate the darkness, it will also bring a little courage and warmth to some people who have insomnia in the cold night. It is this lamp of hope that led Ba Jin and countless people through that dark age.