A theoretical foundation such as the text is necessary as a background to make the exercises in this workbook meaningful. Yet it is The exercises that will make the goal of the course possible. An untrained mind can accomplish nothing. It is the purpose of this exercise is to train the mind to think along the lines the course sets forth.
The exercises are very simple. They do not require a great deal of time, and it does not matter where you do them. They need no preparation they are numbered, running from 1 to 365. The training. Is one year. Do not undertake more than one lesson a day.
The purpose of the workbook is to train the mind in a systematic way to a different perception of everything in the world. The workbook is divided into two sections, the first dealing with the undoing of the way you see now, and the second with the restoration of sight.
Each days exercises are planned around one central idea, which is stated first. This is followed by a description of the specific procedure by which the idea for the day is to be applied. Many of the earlier exercises should be practiced with eyes open, to emphasize the aim to learn how to see. Also unless you were instructed otherwise, it is recommended that each exercise be repeated several or even many times a day, preferably in different place each time, and if possible in every situation in which you spend any long period of time. The purpose is to train the mind to generalize the lessons so that you will understand that each of them is an application to one situation as it is to another.
The only rules that should be followed throughout for these: First, to practice the exercises with great specificity. Each one applies to every situation in which you will find yourself, and everything you see in it. Second be sure that you do not decide that there are some things to which the idea for the day is inapplicable. The aim of the exercises will always be to increase the application of the idea to everything. This requires no effort on your part. The exercises themselves with the conditions necessary for this kind of transfer. Only be sure that you make no exceptions in applying the idea. This will interfere with transfer of training.
Transfer of training in true perception does not proceed as does transfer of the training of the world. If true perception has been achieved in connection with any person, situation, or event, total transfer to everyone and everything is certain. On the other hand, one exception held a part from true perception makes its accomplishment anywhere impossible. The very nature of true perception is that it has no limits. It is The opposite of the way you see now.
Some of the ideas you will find difficult to believe, and others will seem quite startling. It does not matter. You are merely asked to apply them as you are directed to do. You were not asked to judge them or even to believe them. You are merely asked to use them. It is their use that will give them meaning to you, and show you they are true.
Remember only this: You need not believe the ideas, you need not except them, and you need not welcome them. Some of them you may actively resist. None of this will matter, or decrease their efficacy. But allow yourself to make no exceptions in applying the ideas the exercises contain. Whatever your reaction to the ideas may be use them. Nothing more than this is required.

This was taken from A Course in Miracles, Complete & Annotated Edition, Introduction of Part 1