A Course in Miracles affirms, “The ego’s whole continuance depends on its belief you cannot learn this course.” (T-22.III.2:1) Of course! The heart of the assertion is the distinction between “errors” and “sin.” Errors are made for correction, which we will learn to do by learning this Course. Sin can, in Christian theology, only be forgiven and, perhaps, imperfectly, as we humans are prone to do. The Course asserts that it is doubly hard to forgive sin that has been in our minds made “real.” The better way is not to focus on the “sin,” or mistake, from the beginning, but to overlook it as the illusion that it is.
Sin is likened to solid granite (T-22.III.3:4), which, when observed, is seen as an impenetrable barrier. But this is what only the body’s eyes see a form that is not reality at all. It takes the application of reason to truly see, to have vision. The body’s eyes, physically and metaphorically, can never see past illusory form.
It is necessary for us to realize that the ego is a false, illusory self, made by ourselves in insanity, and offering nothing that in our right minds we would really want. God had to protect His universe, and so He allowed our miscreations to live on in illusion only–not in reality. Only in reality can we share the Mind that is His, and thus know reality as it is really meant to be.