It is now how things are in the world that is mystical, but that it (the world) exists at all..... - Ludwig Wittgenstein

No investigation of concepts can tell us that 3 + 2 = 5.

Giving grounds, however, justifying the evidence, comes to an end; but the end is not certain propositions striking us immediately as true i.e. It is not a kind of seeing on our part; it is our acting which lies at the bottom of the language game.

There is not a single philosophical method, though there are indeed methods, different therapies, as it were.