Dreamers use winter.

The author compares himself to that lonely butterfly. Wind refers to the strength of the real society, time refers to time, looking back is looking back at the past, and spring is a beautiful future. I am like a delicate butterfly. There are many fetters in the world, which are hard to break. All I can do is look back on the past and recall a bright future. It's just my own opinion. You can refer to it. I'm sorry that my experience is too shallow to understand the author's meaning deeply.