Sadhguru: Primarily It is just one. One other 1 is just an issue of measurement. We believed that if the homes are any place between 2000-2500 sq. ft., the Bhairavi Yantra would do. For homes larger sized than that, we stated it's not enough and we supplied the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi