Why do you feel depressed after traveling home, and it will take a few days to recover?

Hmm ~ I've been in this situation ~ I feel particularly stressed every time ~ I want to travel ~ I feel ~ I'm in a new environment ~ Everything is so strange ~ Everything is so relaxed ~ My mood seems to suddenly clear up ~ It's like going to a paradise ~ However, when I return to my original place, my mood begins to rain ~ Only later do I find that the purpose and mood of the trip are very important ~ If it's simple,