How to understand the characteristics of "reality and reality coexist" in Jiang's Dream on the 20th of the first month?

Ten years of life and death are two boundless, disapproving and unforgettable. A lonely grave thousands of miles away, desolate and nowhere to talk about. Even if we don't know each other, our faces are dusty and our temples are frosty.

At night, I suddenly dreamed of going home, and the window of Xiao Xuan was being decorated. Looking after each other without words, only a thousand lines of tears are expected to break the heart every year: moonlit night, short matsuoka.

"Ten years of life and death is incredible and unforgettable. A lonely grave thousands of miles away is nowhere to be sad. " In fact, it is written like this, "Even if we meet, we should not know each other. Our faces are covered with dust and our temples are like frost." Is to imagine meeting each other "Night dream suddenly home, Xiao Xuan window, is dressing. There is nothing to say to each other, only a thousand tears. " It is the reappearance of the scene in the dream, and the dream is illusory.