Sadhguru: Basically It is only one. One other 1 is simply a matter of size. We approximated that If your houses are any place concerning 2000-2500 sq. ft., the Bhairavi Yantra would do. For houses more substantial than that, we claimed it's not sufficient and we supplied the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi