Sadhguru: Essentially It is only one. Another just one is simply an issue of size. We approximated that if the houses are any where among 2000-2500 sq. ft., the Bhairavi Yantra would do. For households much larger than that, we stated it's not sufficient and we supplied the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi