Figure versatile and restless, Wittgenstein 'was not indifferent to the problem of God: he felt perplexed between yes and no. A concern not merely intellectual, but experiential, of "deep concern": something that could be called search of the hidden God (ineffable). "The search for God is, for Wittgenstein, a long, passionate research, crossed by a thousand doubts and uncertainties. Searching for an answer to existential questions, always present, of a truth that would give meaning to his life, and is configured as a deep desire for salvation. A long and difficult inner struggle, from which he will never get out at all.