Great Question!

Not sure what you define as spiritual stuff but calling on God, Jesus Christ (of course, depending on your religion) is a beautiful even more powerful way of helping along the healing process for you and for others. In fact it can help you deepen your reliogious experience by opening you up to greater and greater love which is the foundation of most major religions in the world. So, Qigong is not a religion at all. It is just a way for you to heal yourself and can help you lead a more unconditionally loving, joyful and generous life.