Son of Claude Grillot and Marie Louise Adenot[1] he studied in Paris with the Jesuits of the Rue de Vaugirard.
He came into contact with Parisian occult circles, with figures such as Stanislas de Guaita, Gérard Encausse and Péladan, soon becoming, although young, one of the most famous and respected Hermetic scholars.
[4] His taste for aesthetics, as well as his Catholicism, led him, at a very young age, to enter the circle of Péladan's closest collaborators, in the Ordre de la Rose-Croix Catholique et Esthetique du Temple et du Graal (Order of the Catholic and Aesthetic Rosicrucian of the Temple and the Grail) which at that time acquired considerable fame with his Salons.
[4] In this magazine he began to develop pacifist themes which he supported throughout his life and which he explained in his book, Le Christ et la Patrie.
[14] He collaborated with the magazine Le Voile d'Isis, became a friend of Léon Bloy and René Guénon and translated old lost texts from the Corpus Hermeticum: Nicolas Flamel, Basil Valentine, Dom Pernety.