In Search of Enlightenment: 50 Spiritual Masterworks gathers a capacious cross-cultural archive of religious reflection, mystical testimony, philosophical inquiry, devotional counsel, and literary meditation. Moving among aphorism, sermon, autobiography, visionary prose, theological argument, and poetic revelation, the volume stages enlightenment not as a single doctrine but as a continuing struggle over selfhood, grace, reason, suffering, and ethical action. Its most memorable selections juxtapose inward disciplines of contemplation with searching critiques of institutional belief and modern materialism. The contributors span patristic Christianity, medieval mysticism, Reformation and evangelical writing, Romanticism, Transcendentalism, Russian fiction, modern psychology, Theosophy, New Thought, Stoicism, and South Asian anticolonial spirituality. Augustine, Basil the Great, Gregory of Nyssa, and Ignatius of Loyola converse across centuries with Teresa of Ávila, Pascal, Blake, Emerson, Dostoyevsky, Gandhi, William James, and U. G. Krishnamurti. Such plurality illuminates both the continuities and disputes within traditions of spiritual seeking, while voices associated with social reform, esoteric thought, and practical devotion broaden the collection's historical reach. This volume is especially valuable for readers seeking an intellectually serious introduction to spiritual literature in its many forms. It invites comparative reading and offers a rich educational encounter with competing vocabularies of awakening, faith, freedom, and transcendence. Readers will find not a prescribed path, but a sustained dialogue among fifty distinctive attempts to understand the human relation to the sacred.