Sanskrit mantras are NOT about meaning. It is a vibrational energy technique to ameliorate karma. It works, because each of the 50 Sanskrit letters/sounds vibrate a particular one of the 50 petals/spokes of Chakras 1-6.
Mantra patterns are composed by high beings who are able to literally see how the pattern works and whether it is beneficial. This is why it is so critical to be sure that any mantra you may use comes from these ancient authorities.