The 8th step says, “Made a list of all persons we had harmed, and became willing to make amends to them all." Becoming willing is simply the demonstration of admitting powerlessness and unmanageability, of believing in a Power that could restore sanity, and of making a decision to turn your will and life over to the care of that Power. Becoming willing is the action of mind of each of the steps, including four through seven, bringing you squarely to the 8th step. Now in the 8th step, you're called upon to demonstrate the faith gained in steps 1-7 by becoming willing to approach those you've harmed and make amends to all of them. 
 
This is the step to remember the determination to go to any lengths… This is the step that most try to skip over. And yet it truly is the step in which the greatest rewards occur and become available to you. In your willingness to persevere – not to mess around as in your previous addictive mindset – the 8th step becomes the opportunity to really practice everything you've learned up to this point. This is where you step out of the usual patterns of fear and really ‘be about it'. And it is an action, a repetition, or as A Course in Miracles calls it, mind training. Here, in the practice of “I can't, He can, so I'll let Him”, the miraculous rewards of willingness begin to show up. Through the continual decision made in the third step, your mind begins to exhibit new tendencies to freedom from fear.

More and more we became interested in seeing what we could contribute to life. As we felt new power flow in, as we enjoyed peace of mind, as we discovered we could face life successfully, as we became conscious of His presence, we began to lose our fear of today, tomorrow or the hereafter. We were reborn.    Big Book p.64

The 8th step lets you remember to utilize your new ideas, gained in the program, to allow all the power of the universe to help you as you launch out to make amends. This is the point in the program where you prove to yourself that these ideas are actually available to you now in your new way of thinking. That is the essence of the mind training, of both The Workbook of A Course in Miracles as well as the 12 step program. In your willingness to go through the whole process of becoming willing to make amends to them ALL, you will discover the Truth about yourself that will solve your problem. The secret is in the willingness to go the full measure - total, complete inclusion. Then the Miracle can occur. The discovery of Truth is the certainty of the Power that allows you to finally forgive yourself and release everyone and everything around you.

It will be necessary, however, that you learn to require no special settings in which to apply what you have learned. You will need your learning most in situations that appear to be upsetting, rather than in those that already seem to be calm and quiet. The purpose of your learning is to enable you to bring the quiet with you, and to heal distress and turmoil. This is not done by avoiding them and seeking a haven of isolation for yourself.

You will yet learn that peace is part of you, and requires only that you be there to embrace any situation in which you are. And finally you will learn that there is no limit to where you are, so that your peace is everywhere, as you are.

The Workbook of A Course in Miracles, Review I, Introduction