Not long ago i took refuge in Grand Master... one night while reciting Avalokitesvara's heart mantra, i wasnt using my mouth or making any sound during the reciting... it was all done by thinking the sounds and soon after i had started, my lips began to move by themselves making the syllables to the mantra... however they were much quicker than how i was thinking them to be... i took this to mean that i was reciting the mantra too slowly so i caught up with my lips and continued to recite the mantra... the sensation was amazing...