Doing my lesson from A Course in Miracles today, I came across my favorite paragraph in all the material:

“Simply do this: Be still, and lay aside all thoughts of what you are and what God is; all concepts you have learned about the world; all images you hold about yourself. Empty your mind of everything it thinks is either true or false, or good or bad, of every thought it judges worthy, and all the ideas of which it is ashamed. Hold onto nothing. Do not bring with you one thought the past has taught, nor one belief you ever learned before from anything. Forget this world, forget this course, and come with wholly empty hands unto your God.”

— from Lesson 189, “I feel the Love of God within me now.”

Here the Course calls us, as does Zen Buddhism, to radically empty the mind of all it thinks it knows, in order to learn the only things worth knowing. According to A Course in Miracles, enlightenment is not a learning, but an unlearning. We have to unlearn the thinking of the world (ego), in order to learn the ways of love (Spirit).