During his childhood and adolescence, Crépin loved music. He got married in 1901 and had two daughters. Crépin tried out different jobs, well digger, plumber, zinc worker, and ironmonger in the mining country of Montigny-en-Gohelle. Later on he started his own business, a hardware store. In 1930, Crépin met Victor Simon, a medium, a painter and a psychic, who initiated him to spiritualism. He became a healer at the age of fifty-six and supposedly cured people through telepathy and at long distance. His first drawing dates from 1938 when he was sixty-three. It was through copying a music score on the squares of a notebook and guided by the symmetry of the grids that he made his first improvised drawing. Convinced that he was inspired by his guardian angels, he began what would become a rich artistic period, leading to three hundred forty-five paintings in nine years. His oil paintings are based on sketches transferred and enlarged onto canvases with the use of a compass and a ruler. Crépin’s paintings, easily identifiable by their hypnotic symmetry and their almost mechanical perfection, represent architectural themes : temples, palaces and geometrical patterns, to which he added human figures and stylized animals. His motifs are decorated with perfectly calibrated pearled drops. Persuaded of his power to end wars, he convinced himself that the Second World War would end when he finished his three hundredth painting. This was really the case. According to his wish, he was buried with all sketches he made for his paintings.