If you have not heard of Marianne Williamson's lesson series on A Course in Miracles on her XM 156 satellite radio show, it is not too late to catch up. Marianne is conducting a lesson for all 365 days of the year - for example, she spoke on lesson 29 today. The first 28 lessons are available on Oprah.com and each new lesson will be added to the list.

Oprah.com describes A Course in Miracles as:

A self-study program of spiritual psychotherapy contained in three books. It is not a religion, but rather a psychological mind-training base on universal spiritual themes. The practical goal of the Course is the attainment of inner peace through the practice of forgiveness.

For more information on following Marianne's lesson series, visit Oprah.com.