Just like the normal words creating the sound when uttered through mouth, mantras also create sound, but with a vibration affecting the internal chakras in the body. Certain cells in the body, are activated through this vibration. This helps to control the mind by increasing the awareness and concentration. Chanting of mantras in its specific order brings the effect of Prayanam, a yogic practice of controlling the mind through breath control.
Chanting of some mantras create nasal sounds, several others are chanted by giving importance to certain letters in the mantra, etc. Mantras belong to Vedas – Rig, Yajur, Sama chanted based on several traditions. “Aum” is considered as the source of all the mantras in Hinduism. The sound is created with the help of the lips, tongue, jaws, nose and throat. This helps in the smooth flow of prana through the nadis (channels) related to these organs.
When the pranic flow is smooth through these nadis, the brain cells gets activated by bringing a good control over the emotions of the mind. When the emotions are controlled, naturally, the greed, anger, lust that makes the man mad is also controlled and as a result, the individual who practice the mantra chanting starts to live in the world with harmony.
Mind is transformed automatically through the channelizing of the pranic energy through the nadis. The individual gets a good balance over the positive and negative energies of the mind. Just like the sound produced by any musical instrument that soothes the human mind, mantras are also powerful in brining tranquility in the mind.
If the mantras are chanted in a group, the persons who chant and persons who are present in the presence also get benefitted out of it. Generally, mantras are initiated by Guru to a disciple depending on the favorite deity of the disciple. Repeated chanting of mantra takes the disciple to spiritual heights.