The perfection and regret of life, homesickness, homesickness for "looking at the moon in Philip Burkart", homesickness for "spring sorrow" and homesickness for "seeing the water in a fleeting time"
In addition, the "Moon" has the following images.
(1) The bright moon contains the sadness of border people.
(2) The bright moon contains emotional helplessness.
(3) The bright moon contains the eternity of time and space.