Sadhguru: Basically It is only one. The opposite a single is just a question of size. We believed that If your residences are any place amongst 2000-2500 sq. ft., the Bhairavi Yantra would do. For properties greater than that, we stated this isn't sufficient and we provided the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi