We have become conditioned to use the brain to understand things in this world and we think we can use this tool to know who we are. What is missed in this "thinking" is the possibility that who we are (who we think we are) the mind, brain, thoughts are actually IN. The true "You" is what they all appear in, but the mind (who you think you are) cannot see that because you are attempting to use the brain/mind/computer and not what the brain/mind/computer is used by...to know.