dead ashes and dry sticks
Dead and haggard wood is a Chinese word, the pronunciation is s ǐ Hu ī g ǎ om ù, which means dead and haggard wood, cold ashes, withered trees. It means lifeless or depressed, indifferent to the world.
source
Zhuangzi's Qi Wu Lun: "can the solid form make you as haggard, and the solid heart make you as dead as ashes?" Guo Xiang of Jin Dynasty notes: "dead and haggard, take its lonely and heartless ear."
Examples
Do you know where I live? Quiet zhanran, there is no noise, tatran among them, with different but the same. Song Sushi's Guan Miao Tang Ji
usage
As an object, attribute, adverbial; used in figurative sentences
dead ashes and dry sticks
external things that are not physically connected with oneself - shēn wài zhī wù
Sharpen one's toes to suit one's needs - xuē zhǐ shì jù