Sadhguru: Basically It is only one. One other one is just a question of sizing. We estimated that If your houses are any where amongst 2000-2500 sq. ft., the Bhairavi Yantra would do. For households greater than that, we reported this isn't ample and we made available the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi