"In his Religion and Revolution: Spiritual and Political Islam in Ernesto Cardenal, John Morrow has manifested his years-of-research incorporated knowledge in Hispanic, Native American, and Arabic-Islamic studies to shed light on two poorly understood themes - both in the East and, particularly, in the West - via a specific narrative. The themes are, broadly speaking, those of Sufism and the Islamic Republic of Iran. The narrative is the story of Reverend Father Ernesto Cardenal, a Nicaraguan revolutionary Christian priest who had progressively acquired some spiritual and revolutionary interests in Islam after visiting certain Middle Eastern countries, especially Iran." - F. B. Sekaleshfar, The American Journal of Islamic Social Sciences 30:2, 128-131.