Mantra is a mysterious group of letters or phrases so connected with one another that when the mantra is chanted a peculiar sensation or vibration is generated in the entire system. When you chant a mantra correctly and systematically with proper intonation, there is immediately set up a vibration in the nervous system in such a manner that a harmony is established in the whole world. Different mantras produce different vibrations and they invoke different Dieties.

Mantra is chanted to execute a certain purpose. It is believed that hidden in each mantra is the energy of a particular deity which remains normally latent, but becomes active the moment the mantra is pronounced accurately in the manner prescribed by the shastras. According to Hindu beliefs, if a mantra is pronounced correctly the deity to whom it is addressed has no choice but to respond to the invoker automatically and help him.