It is a Course in Miracles. It's a required course. Just the time you go on it is voluntary. Free will does not mean that you'll be able to create the program. It indicates simply as you are able to decide what you need to consider at a given time. The course doesn't aim at educating the meaning of love, for that is beyond what may be taught. It will aim, however, at eliminating the blocks towards the knowing of love's presence, which will be your normal inheritance. The opposite of love is anxiety, but what is all-encompassing might have no reverse.