杜: Du Kang, Du Fu. The character "Du" refers to the sweet pear tree, as stated in the "Shuowen Jiezi" dictionary: "The male is called 'Tang', and the female is called 'Du'."
陵: Mountainous hills, a natural auspicious character, embody a spiritual essence that promises a lifetime of peace and stability.
Meaning: Duling, self-referred by Du Fu, symbolizes an enduring and wise figure who has weathered the vicissitudes of life.