Hemholtz suggested that the brain draws on past experiences to tidy up the visual mess and to come up with the best possible interpretation of what it receives, through a process he called "unconscious inference." We may think we are seeing the world unfiltered, but vision is really forged in the "dark background" of the mind, he proposed, based on what it assumes is most likely to be in front of you.
- The Expectation Effect, pg 13 viii, David Robson
I See Only the Past.
This ides is particularly difficult to believe at first. Yet it is the rationale for all of the preceding ones.
It is the reason why nothing that you see means anything.
It is the reason why you have given everything you see all the meaning that it has for you.
It is the reason why you do not understand anything you see.
It is the reason why your thoughts do not mean anything, and why they are like the things you see.
It is the reason why you are never upset for the reason you think.
It is the reason why you are upset because you see something that is not there.
- A Course in Miracles, Key lesson 7, pg. 803









