Ahmad Yasawi was a prominent 12th-century Sufi poet and philosopher from the region of present-day Kazakhstan. He is best known for his spiritual teachings and the development of the Yasawi order, which emphasized mysticism and devotion to God. His works, written in the Turkic language, played a significant role in spreading Islam among the Turkic peoples. Yasawi's most famous work is the "Divan-i Hikmet," a collection of poems that convey moral and spiritual lessons. His influence extended beyond his lifetime, and he is considered a key figure in the cultural and religious history of Central Asia. The Yasawi Mausoleum, built in his honor, is a UNESCO World Heritage site.