Sadhguru: Basically It is only one. The other one is simply a question of dimensions. We believed that If your homes are any where among 2000-2500 sq. ft., the Bhairavi Yantra would do. For households greater than that, we reported this isn't enough and we available the Avighna. Avighna also https://www.youtube.com/@Mahavidyabaglamukhi