What is Elm
Mulberry elm: It is said that the sun sets on áÃáÑ and its shadow shines on the mulberry elm tree. Compared with the sunset, after the metaphor of the old age.
Tang Liu Yuxi "Yue Tian Yong old see" : "Mo Sangyu late, for xia still full sky."
Tang Wang Bo "Tengwang Pavilion Preface" : "East elm is lost, Sangyu is not too late."