Sadhguru: Essentially It is just one. One other a person is just a matter of measurement. We estimated that if the households are any place amongst 2000-2500 sq. ft., the Bhairavi Yantra would do. For houses larger than that, we claimed this isn't sufficient and we presented the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi