Sadhguru: Basically It is just one. Another a single is just a question of dimensions. We believed that When the households are anywhere between 2000-2500 sq. ft., the Bhairavi Yantra would do. For residences larger than that, we mentioned this is simply not enough and we supplied the Avighna. Avighna https://www.youtube.com/@Mahavidyabaglamukhi