His works include: The author of the Livre du néant had a predilection for gloomy subjects and especially for pictures of death.
His oriental habits of thought earned for him the title of the Hindou du Parnasse contemporain (cf.
Some of his poems have been set to music by Camille Saint-Saëns, Henri Duparc, Charles Bordes, Ernest Chausson, Reynaldo Hahn, Edouard Trémisot, Dagmar de Corval Rybner,[1] and Paul Paray.
du XIXieme siècle (1887-1888); Jules Lemaître, Les Contemporains (1889); Émile Faguet in the Revue bleue (October 1893).
George Santayana's Poetry and Religion (1900) has an essay on his concept of La gloire du néant.