Amrita Nada Upanishad - Om Kriya
- Select a place free from disturbances. Spread a mat made up of Darbha or Kusa grass.
- Keep the mind free from any disturbances
- Facing north, assume any yoga posture among Padma Asana, Swastika Asana, Bhadra Asana or any other asana which can be practised at ease.
- Mentally mutter ‘Om’
- Close a nostril with one finger, inspire through another nostril and retain the breath to maintain Agni (fire) at Muladhara. Contemplate on the sound Om only.
This should be done many times to get rid of the impurities. Meditation should be done traversing from Gross state to subtle state, beginning with navel and upwards.