To be able to trace everything we say, do, think, feel, and touch back to mind takes a considerable amount of mind training. ACIM daily lessons serve as tools to help the mind reorient itself. It is quite common for years and years of humbling to accompany the mind training, before one can truly see that all perception is an impersonal non-located state of mind. When you start to get the awareness that everything is a thought, it is blatantly simple. This is what Workbook Lesson 23 of "A Course in Miracles" refers to: "I can give up this . . .