By: Paul S. Cilwa Page Views: 1 A pass through all twelve of your Systems, adjusting and clearing each one in turn. Estimated reading time: 1 minute(s) (44 words) Clear and Balance Your Twelve Energy Centers The ONA Meditation Series This meditation examines each of your twelve Systems, adjusting and clearing them to help achieve a whole, healthy, Self. The musical background has been electronically processed to promote the production of Theta brainwaves.