I didn’t see this pointed out, but OM is considered the first sound of creation in yoga tradition, suitable? Helps make me want to chant OM though gazing my Yantra! Repeat a mantra, for example “Om Namah Shivaya,” or just recite the names in the deity related to the yantra. https://freekundli67777.newbigblog.com/46058019/bagllaukhi-for-dummies