I didn’t see this pointed out, but OM is taken into account the 1st audio of generation in yoga tradition, suitable? Tends to make me choose to chant OM though watching my Yantra! Modern-day Adaptations and Uses:  In modern periods, yantras have transcended conventional bounds. These are now noticed in https://immensedirectory.com/listings1060154/the-definitive-guide-to-sadhna