There are a number of versions and if you want to hunt out a few you might find one that clicks with you. Amazon.com, has samples and free downloads.
I recommend waiting till the retreat on the chant and the fast. The ones you will hear at the retreat might be a greater inspiration to you to take home, whether you understand and remember the meaning or not. you will take home the experience with them and that will probably mean more to you on an inner level than intellecual understanding.
The group dynamics and the amount of Qigong work you will be doing will make a great difference. Chunyi Lin will also teach you how to handle the fast. Remember there is going to be a lot of support there from your fellow participants. Everyone there more or less has the same goals to heal, be healed and take their Spring Forest Qigong skills to the next level.
Alex
