What Is a Mantra and How Does It Work
A saying from the Vedas claims that “Speech is the essence of humanity.”
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.
Another level is intent. If the actual physical vibration is coupled with a mental intention, the vibration then contains an additional mental component which influences the result of saying it. The sound is the carrier wave and the intent is overlaid upon the wave form, just as a colored gel influences the appearance and effect of a white light.
In either instance, the word is based upon energy. Nowhere is this idea more true than for Sanskrit mantra. For although there is a general meaning which comes to be associated with mantras, the only lasting definition is the result or effect of saying the mantra.
Each mantra is associated with an actual sage or historical person who once lived. Although the oral tradition predates written speech by centuries, those earliest oral records annotated on palm leaves discussed earlier clearly designate a specific sage as the “seer” of the mantra. This means that the mantra was probably arrived at through some form of meditation or intuition and subsequently tested by the person who first encountered it.
Story Source: पूज्य आचार्य