A Sangha is a community of like-minded people. Being part of one can help your personal growth as a yogi/yogini.
It’s the reason we have set up our own (online) Sangha and why we do our Yoga on the Sofa Podcasts.
Why does it work? Sara Bigatti (http://www.lascimmiayoga) and John Kraijenbrink (http://www.yogaopklompen.nl) will tell you in this episode, number 11, of Yoga on the Sofa.
Of course, John will be a bit nerdy again and throw in some scientific facts.