Mantras are only endowed with transformative power if given in initiation (dīkṣa) through the mouth of a Expert. It isn't a lot of correct pronunciation, but somewhat the power with which the mantra is endowed that provides it transforming ability. Mantra realized its greatest improvement in Hindu and Buddhist Tantras, https://vashikaran00853.ivasdesign.com/58232286/the-definitive-guide-to-beej-mantra