Sadhguru: Basically it is just one. The other one is simply a matter of dimensions. We estimated that if the residences are wherever among 2000-2500 sq. ft., the Bhairavi Yantra would do. For homes much larger than that, we mentioned this is not plenty of and we supplied the Avighna. https://ricardocztmd.blogscribble.com/39527956/little-known-facts-about-sadhna