Mantra repetition creates sleepiness

Did you know...
...that mantra repetition calms you down by creating sleepiness? It’s helpful to a certain extent, but don’t confuse this surface calm with meditation. In a way, it’s a sort of dullness, and dangerous too, because sooner or later the unconscious will erupt again. Mantra repetition does not dissolve the inner division, it changes not your innermost being.