The fact is there is nothing that you can trust; and that is a terrible fact, whether you like it or not. Psychologically there is nothing in the world, that you can put your faith, your trust, or your belief in. Neither your gods, nor your science can save you, can bring you psychological certainty; and you have to accept that you can trust in absolutely nothing.
No book can teach you about yourself, no psychologist, none of the professors or philosophers. What they can teach you is what they think you are or what they think you should be.
The very desire to be certain,to be secure,is the beginning of bondage.It's only when the mind is not caught in the net of certainty,and is not seeking certainty, that it is in a state of discovery.
Our brains are so conditioned through education, through religion, to think we are separate entities with separate souls and so on. We are not individuals at all. We are the result of thousands of years of human experience, human endeavor and struggle.
The reality of truth is not to be bought, to be sold, to be repeated; it cannot be caught in books. It has to be found from moment to moment, in the smile, in the tear, under the dead leaf, in the vagrant thought, in the fullness of love.