Sadhguru: Primarily It is only one. One other a single is just an issue of measurement. We approximated that If your residences are wherever involving 2000-2500 sq. ft., the Bhairavi Yantra would do. For households larger than that, we mentioned this isn't adequate and we supplied the Avighna. Avighna also https://www.youtube.com/@Mahavidyabaglamukhi