A functional art, African poetry in its oral and written forms has addressed a variety of themes, including worldview, mysticism, values, religion, nature, negritude, personal relationships, anticolonialism, pan-Africanism, neocolonialism, urbanism, migration, exile, the African diaspora, and patriarchy, as well as such universals as valor, birth, death, betrayal, and love. Religious poetry is exemplified by Islamic influences in such languages as Arabic, Hausa, and Swahili and in Ifa oral verses. A primary motif is the spiritual world, often reflected in a praise or evocation of ancestors.