Mantras are energy based sounds that vibrate through the body. The word "mantra" is a Sanskrit word consisting of two syllables: "man" (mind) and "tra" (deliverance). A mantra is a pure sound vibration which delivers the mind from it's form, to put it simply, frustration. Chanting is the process of repeating a mantra over and over to touch the deepest level of the self.
The purpose of mantras is to rebirth the self; a refreshment of the self. Mantras are a very powerful way to reduce negative energies. A Mantra will help focus your mind when it is scattered. By chanting mantras, you are able to produce a spiritual effect, associated with the physical sensation of the vibration the chant produces. When the mantra is chanted the effect is felt vibrating through the body. Chanting mantras is also used to make the intent of the mantra a physical reality. Energy naturally follows intent so the chanting of a mantra will lead to the physical manifestation. Mantras start a powerful vibration which corresponds to both a specific spiritual energy frequency and a state of consciousness. Over time the mantra process begins to over power lesser vibrations, which eventually become absorbed by the mantra. After a length of time, which varies with each individual, the wave of the mantra stills all other vibrations.
Ultimately, the mantra produces a state where the organism vibrates at the rate completely in tune with the energy and spiritual state represented by and contained within the mantra. By understanding how mantras work, your understanding of spiritual truth is seen and acquired.
The Gayatri Mantra
AUM BHOOR BHUWAH SWAHA,
TAT SAVITUR VARENYAM
BHARGO DEVASAYA DHEEMAHI
DHIYO YO NAHA PRACHODAYAT
We contemplate the glory of light illuminating the three worlds: gross, suble and causal. I am that vivifying power, love, radiant illumination and divine grace of universal intelligence.