He dabbled in Spiritualism during his exile ( where he participated also in seances ) , and in later years settled into a Rationalist Deism similar to that espoused by Voltaire . He frequented Spiritism during his exile ( where he participated also in many sÃ ances conducted by Madame Delphine de Girardin ) , and in later years settled into a Rationalist Deism similar to that espoused by Voltaire .