Belief is a barrier to truth. And what the mind believes never becomes true, because truth is not becoming, truth is being; it is already the case. You have to see it -- or you can go on avoiding seeing it, but it is there. Nothing has to be added to it, it is eternally there.
And the best way to avoid truth is to believe. Then you need not look at it. Your eyes become full of belief; belief functions as dust on the eyes. You become closed into yourself, the belief becomes a prison around you. Belief closes you: then you are living within yourself in a windowless existence, and you can go on believing whatsoever you want to believe. But remember, it is belief, and belief is a lie.
Let me say that even when the truth is told to you, don't believe in it! Explore, inquire, search, experiment, experience: don't believe in it. Even when truth is conveyed to you, if you believe in it, you turn it into a lie. A truth believed is a lie, belief turns truth into a lie.
-Rajneesh