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'."

林: The forest, a realm of trees. When used in personal names, it signifies an open-hearted spirit, a sense of responsibility, and a peaceful detachment from worldly strife.