 Many Daoist texts also refer to the hun and the po, two untranslatable terms often rendered as “spiritual and material souls”, “celestial and earthly souls”, or in similar ways. The hun stands for the Yang and lighter components of the human being that pertain to Heaven and return there after death. The po stands for the Yin and grosser components that pertain to the Earth and return there when death occurs. According to different views, the hun and the po may be single or multiple; in the latter case, the hun are three, and the po are seven.