The Vedantic scrolls say "they are tyrants without limitation of conduct and can exercise no restraint of passions." That was written at some point over 8000+ years ago, perhaps even 12,000+ years ago at the start of the Holocene. Think about what a sublime insight that is into their innermost character, even in translation of Sanskrit it comes across vividly despite the barrier of language, culture and time.
A few stanzas later, the "breath" metaphors begin, a total of seven metaphors to describe how their "breath" affects things around them. "Their breath issues out an unclean spirit that suppresses the rightful expression of law which is a function of the mouth."
Pay attention to the incredible parallels between this following stanza which is remarkably like passages in the Old Testament. "An unclean spirit is breathed from them that is like the paralyzing venom of serpents to excite confusion."
The Vedantics were scholars who had survived the apocalypse described in the Mahabarata and has set themselves the task of analyzing and comprehending why their civilization had been destroyed. They were trying to warn people in the future about these things in the hope what wisdom they could distill from experience would be transmitted to the next generation. One theme that occupied the Vedantics is insidiousness, that is to say, how the worst things come on as a series of gradual abuses that do not seem catastrophic at the time but eventually add up to the "fire mushrooms" that destroyed the Indo-Aryan civilization. Academics will tell you they are "obscure" for a reason. Academics don't want you learning anything from your ancestors - they essentially want to insert themselves between you and your forefathers so they can't tell you anything or pass anything to you that you could use to avoid the evils they describe. For this reason, the Vedantic scrolls of ancient India remain some of the most politically incorrect literature of all time, second only to the Dead Sea scrolls themselves.