Om Namah Shivaya is at the center from the Vedas and Tantras (historical Scriptures) and finds its mention during the Yajurveda while in the Shri Rudram hymn. Perceived for being most successful if, inside the follow of Japa Yoga, the place the mantra is repeated verbally or mentally 108 periods https://thetopdirectory.com/listings13057756/the-best-side-of-10-most-powerful-mantra