Knowledge belongs to Heaven and is direct certainty of truth, beyond images, interpretation, comparison, or doubt. Perception belongs to the dream, where the mind sees according to the purpose it has chosen. The Holy Spirit does not turn perception into knowledge, but corrects perception through forgiveness until it becomes true perception, the final bridge before knowledge is restored.
you do not know the meaning of anything you perceive Not one thought you hold is wholly true. you understand nothing question everything that you have learned of yourself
³Do not make the mistake of believing that you understand what you perceive, for its meaning is lost to you. ⁴But the Holy Spirit has saved its meaning for you, and if you will let Him interpret it for you, He will restore what you have thrown away. As long as you think you know its meaning, you will see no need to ask it of Him. ²Yet you do not know the meaning of anything you perceive. ³Not one thought you hold is wholly true. ⁴The recognition of this is your firm beginning. ⁵You are not misguided; you have accepted no guide at all. ⁶Instruction in perception is your great need, for you understand nothing. ⁷Recognize this, but do not accept it, for understanding is your inheritance. ⁸Perceptions are learned, and you are not without a Teacher. ⁹But your willingness to learn of Him depends on your willingness to question everything that you have learned of yourself, for you who have learned amiss should not be your own teacher. - [CE T-11.IX.1-2]