It struck me as I went though this exercise, how the bija mantras take this essential sound "ah" and refine it, so that it awakens the specific chakra centers...
Dear Kate, Thank you very much for sharing your insight! Makes the journey more enriching. Look forward to hearing more of your precious experiences :)
Saravanan , the more often the merrier. I think it is very hard to generalise a time frame for such simple sounds. These sounds correspond to expeiences so i would suggest customised practice. As long as their practice speaks to them, one should keep doing it. Best wishes.