That is a Siddha Mantra and does not have to be Mastered for practicing it to the self or someone affected by unsafe Spells cast by a Black magic Spell Caster, the practitioner has got to just take some water in the Copper Kalash or every other copper utensil and https://johnathandjiii.blogminds.com/5-simple-statements-about-hanuman-mohini-mantra-explained-29579568