This text aims not at a systematic presentation of Wittgenstein's thought about religious experience and language but rather at calling attention to the fecundity of such a thought for revitalizing and renewing philosophy, specially philosophy of religion in Latin America. After the presentation of characteristic features of Wittgenstein's philosophy and its influence in 20'th century thought, the author undertakes the exposition of the most relevant features of religious experience and language according to the austrian philosopher. An overlook of the principal Wittgenstein's mystic-religious work sallows him to undercover the originality of religious experience and language, its irreductibility to other language games (for instance, cognitive- descriptive ones) and, at the same time to denonce a danger menacing our culture: the reduction of religious language to metaphysical one. The text ends stressing the function of religious language to maintain alive and active in human conciousness the experience of mystery and permanent surprise, essential for an authentic human existence.