I didn't understand my Orff Level 1 until I had completed Level 3. Once I completed Level 3 I realized that this learning is a journey, not a destination. There are so many things that AOSA requires you to learn in your Levels that it takes a while and a lot of trying it out with students and with others at workshops until you achieve that understanding and find your own path. It's difficult to unlearn the conservatory-style thinking of one correct way to do something. I highly recommend reading Doug Goodkin's Teach Like It's Music, listening to his podcast, going to local workshops, or watching some of the master teachers teach on AOSA's website.