Gary explains Course In Miracles principles in easy-to-understand layman's terms, and more importantly, what these principles mean to us as students of the course and spiritual seekers. In this 2-CD set, he goes through helpful techniques of putting the Holy Spirit in charge, a guided prayer of merging with your source, and a helpful review of forgiveness, one of the Course In Miracle's main concepts and techniques for giving up separateness and experiencing oneness with our creator.
The principles, once explained, are relatively easy to understand, especially if you've had any background with Eastern concepts of non-dualism, such as those taught in Hinduism, Buddhism, or Taoism. Understand, yes, but they are not so easy to do. This is why Gary's teaching is helpful here. He understands how these principles work, and can show us how they work in our day-to-day lives, rather than them remaining concepts in a book that can be at times intimidating in its size and scope.
Gary is a popularizer of the course, and every time I have heard him speak (on CDs, live appearances, or his podcast on iTunes) he remains true to course principles and doesn't try to water them down or interpret them in ways that would be more new age-friendly, or get him an appearance on Oprah. The course has been described as uncompromising, and can put quite a few people off because of this.
Gary has been able to remain as funny, accessible, and human as possible, while still understanding and practicing these concepts as directed by the course. This is what makes him valuable as a teacher. He is a lot like us - average in many ways. However, his application of course principles and the results he gets, added to his ability to communicate his experiences in everyday terms elevates his teaching from above average to the inspirational.
Above all, he wants us to taste and experience the course first-hand for ourselves, and not leave it up on the shelf. In the process of doing this, his presentation is often upbeat and practical. I find myself filled with renewed hope after listening to this CD set.