Om Namah Shivaya Is at the guts of your Vedas and Tantras (ancient Scriptures) and finds its mention while in the Yajurveda during the Shri Rudram hymn. Perceived to get most productive if, within the apply of Japa Yoga, where the mantra is recurring verbally or mentally 108 periods daily https://youtube.com/shorts/CeBSHFfmcrE