I didn’t see this described, but OM is considered the very first seem of development in yoga tradition, suitable? Tends to make me choose to chant OM even though staring at my Yantra! (especially in Hinduism and Buddhism) a phrase or seem that's thought to possess a Unique spiritual electricity: https://johnathanvabab.thenerdsblog.com/45727231/bagllaukhi-for-dummies