A 21 minutes powerful chanting technique that is very helpful or beneficial for centering with your inner being. The seed syllable Om or Aum is the most fundamental and potent mantra in the Vedic tradition. This mantra represents the underlying unity of Brahman or reality. Essentially, before existence and beyond existence is only One reality, Brahman, and the first manifestation of Brahman in existence is the vibration of Om. That is why it is known as the pranava mantra, the source of all mantras.
Sit upright with your eyes closed. Concentrate on your navel center, manipuraka chakra (a vital energy center in the body located in the navel area). Just take a few moments to place your awareness on the navel center. Forget all other parts of the body, remember only the navel center. Now from your navel, start creating the deep vibration of Omkaara or ‘Om’ sound. Start the sound from your navel center, as deeply as possible. Don’t allow the mind to go anywhere else. Enjoy the pure resonance of the mantra. Just be centered on the mantra, go into the center of the sound.
Once you are harmonious with the mantra, you can drop saying it out loud. Now, intone it only inside, don’t bring it out. The sound should still fill your whole body, so say it loudly inside. Feel the mantra continuously resonating inside you. Without creating the sound, be filled by the sound within. Relax and open your eyes. Try this meditation for just ten days. You will see that you are able to sit without thoughts. You will be filled by the mantra, by the vibration that you create, and your mind will not move outside the vibration.