Help me to interpret this lyric "Window". Is it a kind of fate?

I agree with upstairs, but I also want to talk about my understanding. I think this poem is about the state of marginal people who are divorced from society, people and mainstream. The image of the window symbolizes a kind of boundary. You can see out of the window (secular society), but you can't touch it. But poets don't like this feeling of alienation from society, let alone enjoy it. He longs for that secular life. The oil paintings on the window are more worth pondering. It is not China's ink painting, but full of sense of birth. Nor is it gouache, as light as the countryside in my hometown; It is a colorful oil painting, which can block all the scenery outside the window, showing the poet's rejection of the window and full of contradictions.