Burrell considers how friendship can be constitutive of the spiritual exercises one employs to seek truth, and he examines the influences on his thinking of Bernard Lonergan, Stanley Hauerwas, and Augustine to show how friends can open our minds and hearts to interfaith dialogue and the mutual illumination it offers. He also explores cross-cultural understanding through a comparison of the teaching of Aquinas with that of Islam's al-Ghazali, suggesting that their complementary perspectives can fr