Do not try to know the truth, for knowledge by the mind is not true knowledge. But you can know what is not true, which is enough to liberate you from the false. The idea that you know what is true is dangerous, for it keeps you imprisoned in the mind. It is when you do not know that you are free to investigate. And there can be no salvation without investigation, because non-investigation is the main cause of bondage.
Keep very quiet and watch what comes to the surface of the mind. Reject the known, welcome the so far unknown and reject it in its turn. Thus you come to a state in which there is no knowledge, only being, in which being itself is knowledge.
Source: I AM THAT