The Diwan, or Divan (Persian: دیوان), is a collection of poems written and compiled by Nasir Khusraw (1004–1088 AD). Khusraw composed most of his poems in the Valley of Yumgan, a remote mountainous region in Badakhshan (in present-day Afghanistan). The Divan contains around 11,000 verses of Khusraw's own poetry, reflecting philosophical, religious, and personal themes.