This question is based on selected poems from D. Ker, C. Maduka et al (eds.): New poetry from Africa, Wole Soyinka (ed.): Poems of Black Africa, K.E. Senanu and T. Vincent (eds.): A Selection of African poetry and E.W. Parker (ed.): A Pageant of Longer Poems.
What is the dominant poetic device used in Christopher Okigbo's 'Hurrah for Thunder?