1. Reason: There are no words such as sadness and sorrow here, but the sadness and nostalgia are beyond words. This is silent than loud! The meaning is meaningful: the good wife has been dead for many years, and the author misses her all the time. People are dead, but things still exist. The loquat tree is the continuation of his wife's love for her.
2. Original text source: The original text is "There is a loquat tree in the courtyard. It was planted by my wife when she died. Now it is like a canopy." The source is "Xiang Ji Xuan Zhi", the author is Gui Youguang .