Chanting of sacred sounds has always been a delightful way to focus the mind. This type of meditation is very powerful and effective because of the vibratory effects of their sounds.
Sound is produced when the vibration strikes the eardrum and is carried to the brain. This explains that sound is vibration. Specific vibrations can stimulate the endocrine system, specifically the pituitary gland (master gland), and pineal gland located in the head.
Chanting a mantra keeps the mind busy while you breathe in a specific pattern. It’s like singing a song, your breath pattern becomes the same as the singer”s breath pattern.
Mantras are made of “current sounds”. Current sounds are specific sounds that when triggered produce a frequency. There are 84 meridian points in the palate, and when stimulated with the “current sounds” produce a specific frequency. This frequency passes from the hypothalamus to the pituitary gland. Next the release of hormones takes place, and a change in mood, emotions, happens.
Through a PET scan, the device used to observe, and study the brain, it was possible to study the changes in the brain while chanting the mantra SA TA NA MA. After chanting the mantra there was a strong shift in brain activity to the right frontal and parietal regions. This shift indicates an improvement in mood alertness. Sound currents also stimulate the vagus nerve (this nerve affects the neck, jaw, heart, lungs, intestinal track, and back muscles), the nadis, and the chakras.