Om Namah Shivaya Is at the guts on the Vedas and Tantras (ancient Scriptures) and finds its mention within the Yajurveda within the Shri Rudram hymn. Perceived for being most successful if, while in the follow of Japa Yoga, the place the mantra is repeated verbally or mentally 108 instances https://youtube.com/shorts/CeBSHFfmcrE