Sadhguru: Basically It is just one. Another a single is just an issue of measurement. We approximated that When the residences are any where between 2000-2500 sq. ft., the Bhairavi Yantra would do. For homes bigger than that, we stated this is not sufficient and we provided the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi