His publications include Al-Ghazali’s Unspeakable Doctrine of the Soul, a study of controversies surrounding the soul and the afterlife in medieval Islam, and In the Light of a Blessed Tree: Illuminations of Islamic Belief, Practice, and History, an experientially textured introduction to Islamic belief, practice, and history. His current work focuses on moral theology and spiritual formation within traditional Islamic frameworks, and he is a strong advocate for spiritual education both within and beyond the Muslim community.