The Qingjing Jing (simplified Chinese: 清静经; traditional Chinese: 清靜經; pinyin: Qīngjìng Jīng; Wade–Giles: Ch'ing Ching Ching; lit. 'Classic of Clarity/Purity and Stillness/Tranquility') is an anonymous Tang Dynasty Taoist classic that combines philosophical themes from the Tao Te Ching with the logical presentation of Buddhist texts and a literary form reminiscent of the Heart Sutra. It instructs students of the Tao to practice the elimination of desire in order to cultivate spiritual purity and stillness.