Sadhguru: Fundamentally It is only one. The other a single is simply a matter of size. We approximated that If your households are anyplace amongst 2000-2500 sq. ft., the Bhairavi Yantra would do. For residences larger sized than that, we stated this isn't ample and we made available the Avighna. https://www.youtube.com/@Mahavidyabaglamukhi