Training the breath:

As you allow your mind to flow with the Soham Mantra, also gently train your breath। This breath training has a tremendous effect on calming the mind.
No pause: Allow there to be no pauses between breaths। Inhalation naturally, smoothly transitions into exhalation, and exhalation naturally transitions into inhalation.
Silent: The breath itself is quiet, with the sound of the mantra only remembered internally.
No jerkiness: Gradually eliminate any jerkiness or irregularities, so that the breath is smooth. The bumps in the breath come from the mind, and calming the breath will in turn calm the mind. Slow: A comfortably slow breath is very beneficial। The rate of the mantra in the recording will bring your breath to a comfortable rate.
Diaphragmatic: Breathe with the diaphragm muscle, the large muscle connected all the way around the inside of the lower rib cage. The muscles of the lower abdomen and the upper chest are not needed to breathe diaphragmatically.