A major spiritual master of the 20th century, the Franciscan friar Éloi Leclerc (1921-2016) greatly contributed to popularizing the figure and thought of Saint Francis of Assisi. Beyond his first book (and bestseller), *Wisdom of a Poor Man* (1959), his work deserves to be discovered by a wide audience seeking spiritual nourishment. After retracing the life of this Franciscan, a survivor of Nazi concentration camps, the course details the main aspects of his spiritual message: hope, the Trinity, interiority, wonder, adoration, humility, fraternity, and openness.