What is the theme of the roadside station on a snowy night?

Stopping by the Woods on a Snowy Night is one of the representative works of American poet Robert Frost. The poet expressed his inner contradiction with unpretentious words and intriguing symbolism-staying by the forest is to "appreciate the snow-covered trees"; The reason for leaving is "I'm going to travel on an appointment", which breaks the theme of the whole poem: people will feel tired in the struggle of life, will be eager to rest or even die, but they will always refuse to stay, and will drag their feet on the road of life to complete their life mission.