Sadhguru: Fundamentally it is only one. One other a person is simply a matter of sizing. We estimated that if the homes are anyplace in between 2000-2500 sq. ft., the Bhairavi Yantra would do. For houses bigger than that, we stated this is not sufficient and we provided the Avighna. https://lorenzofyqhc.isblog.net/the-5-second-trick-for-sadhna-56346247