This essay collects, with as much modesty as ambition, a spiritual itinerary for the men and women of today. An essential rereading, as simple as it is profound, of the legacy of Christ, beacon of humanity. The gospel as a map of consciousness and as a permanent existential provocation. Biography of Light is a text designed for all spiritual seekers and, therefore, written from a cultural rather than a confessional perspective. A path, as radical as possible, for enlightenment, understanding it as something simple and everyday.