Sri Nathamuni was a great yogi, scholar, and devotee who organized the Nalayira Divya Prabandham (the 4,000 divine verses of the Alvars). He compiled his profound insights into yoga in the text Yoga Rahasya , which translates to "The Secret Doctrine of Yoga." The Lost Text
: One of the first historical texts to explicitly advocate for and detail yoga practices specifically for women. yoga rahasya sri nathamuni pdf free download