What do “the School”, "the Fields of Gazing Grain" and “the Setting Sun” represent?
THEY REPRESENT THREE STAGES OF LIFE:” THE SCHOOL”----YOUTH; “THE FIELDS OF GAZING GRAIN”—MATURE PERIOD;” THE SETTING SUN”—END OF LIFE. 
What do “the School”, "the Fields of Gazing Grain" and “the Setting Sun” represent?
THEY REPRESENT THREE STAGES OF LIFE:” THE SCHOOL”----YOUTH; “THE FIELDS OF GAZING GRAIN”—MATURE PERIOD;” THE SETTING SUN”—END OF LIFE.