The Biblical Spirituality of St. John by Paul-Marie de la Croix, OCD, is a scholarly yet accessible exploration of Johannine theology (Gospel, Letters, Apocalypse) as a pathway for spiritual life. It highlights intimate union with Christ, the role of the Holy Spirit, abiding in love, and the paradox of light and darkness. The work explores the mystical journey through the lens of Johannine light, encouraging believers to walk in the light and move beyond spiritual darkness.