Sadhguru: Basically It is just one. The other a single is simply a question of measurement. We estimated that if the residences are anyplace in between 2000-2500 sq. ft., the Bhairavi Yantra would do. For properties greater than that, we mentioned this isn't adequate and we supplied the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi