Hello seekers,
I've just started reading the book Gheranda Samhita. The book recommends to first purify the nadis before starting any pranayama, what's got me confused are the Bija mantras (YAM, RAM, THAM, VAM - I'm not sure if those are correct, I used Google translate of the text I found at a German website) and their duration.
What are the Bija mantras? What does 16 times, 32 times and 64 times mean? What is the specific duration in seconds?
Thanks for the help.