Another mistake will be to practice for the sake of the joy you find in it. Actually, when your practice is involved in a feeling of joy, it is not in very good shape either. Of course this is not poor practice, but compared to the true practice it is not so good. In Hinayana Buddhism, practice is classified in four ways. The best way is just to do it without having any joy in it, not even spiritual joy. This way is just to do it, forgetting your physical and mental feeling, forgetting all about yourself in your practice.
