A ghazal is a form of poetry that originated in Arabic literature and later became popular in Persian, Urdu, and other languages. It typically consists of five to fifteen couplets, each expressing a self-contained thought or emotion. The themes often revolve around love, loss, and longing, and the structure includes a refrain that appears at the end of the second line of each couplet. Each couplet in a ghazal is usually written in a specific meter, and the poet often employs rich imagery and metaphors. Notable poets who have written ghazals include Mirza Ghalib and Faiz Ahmed Faiz. The form allows for deep emotional expression while maintaining a musical quality, making it a cherished part of literary traditions in many cultures.