According to Eastern mysticism, the mantra harnesses the power of the vibration of shabda, sacred sound. The repetition of mantras unleashes certain cosmic forces which drive deep into the consciousness, down to the level of the cells. When we repeat the names of God, we are aligning every cell in our being with the highest consciousness possible. The constant repetition of holy vibrations raises up our own consciousness. We burst out into a new level of awareness and being, which becomes part of us without our having to think consciously about it.
Profound changes take place.
All religions acknowledge the tremendous power of vibrating the names of God, either mentally or aloud. Essentially, it means the honoring of the divine within. Mantras help us to concentrate our mental forces, which in turn boosts the effectiveness of our thoughts and visualizations. The highest possible qualities are radiated back to us in a continuous stream. The beauty of the mantra is that for all its power, it requires little effort to put into practice.