Sadhguru: Essentially It is only one. One other just one is simply a matter of dimensions. We approximated that When the homes are anyplace between 2000-2500 sq. ft., the Bhairavi Yantra would do. For households much larger than that, we explained this isn't enough and we available the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi