The ghazal is a poetic form that originated in Arabic poetry and became popular in Persian and Urdu literature. It is structured in couplets that must rhyme and can stand independently. The 13th century Persian poet Rumi is one of its most famous practitioners. The ghazal form emphasizes universal themes of love and loss. It was further popularized in English by the poet Agha Shahid Ali through original ghazals that demonstrate the form's construction and challenges of adapting it to the English language.