Whatever the sound, it has no meaning until someone or a group of people give it meaning. It is just vibration of the air. When your eardrum is vibrated your ear-consciousness translates that into sound.
You then have to associate that sound with some meaning, which is usually mutually agreed upon by a group.
It's all artificial. The Prajna Paramita Mantra is just as artificial as Coca Cola. It's all just sound, before (and after) meaning is applied.
The sound "I" in English means me. But the same sound in Chinese means "love". Which one is correct?
Maybe Coca Cola means something in Sanskrit?
When you accept or reject, push or pull, then it doesn't matter what you say, it will have no use for your practice. That is still attachment to words and speech.
When you can go beyond (pun intended) the Prajna Paramita Mantra and attain one-pointed Coca Cola Samadhi, you will put it all down and just help save others... after all.