Mantra

Mantras are energy-based sounds. Saying any word produces an actual physical vibration. Over time, if we know what the effect of that vibration is, then the word may come to have meaning associated with the effect of saying that vibration or word. This is one level of energy basis for words.

Mantras create thought-energy waves. Mantras start a powerful vibration which corresponds to both a specific spiritual energy frequency and a state of consciousness in seed form. Over time, the mantra process begins to override all of the other smaller vibrations, which eventually become absorbed by the mantra. After a length of time which varies from individual to individual, the great 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. At this point, a change of state occurs in the organism. The organism becomes subtly different. Just as a laser is light which is coherent in a new way, the person who becomes one with the state produced by the mantra is also coherent in a way which did not exist prior to the conscious undertaking of repetition of the mantra.

Mantras are tools of power and tools for power. The mind expands, deepens and widens and eventually dips into the essence of cosmic existence. On its journey, the mind comes to understand much about the essence of the vibration of things. And knowledge, as we all know, is power. In the case of mantra, this power is tangible and wieldable.

Source: http://www.sanskritmantra.com/what.htm

So, matra gives you power and quiets the mind? Or rather quiets the mind and with a quiet mind you have the power? Let me try it out and get back to you...