Had Bergson anticipated, in a 1903 paper that stated the possibility to go through the intuition of the self to the intuition of an "eternity of life", his following works, and especially his great 1932 book, "The Two Sources of Morality and Religion"? If his philosophical method of intuition hadn't changed during the thirty years between those two works, one would be compelled to say yes. Following Jean Nabert (1941), I want to show in this paper that Bergson's philosophical method undergoes great modifications in 1932, when Bergson partly abandons the immediacy requirement and discovers mediacy.