It wasn't too long ago we had a discussion along those lines.
It has been argued, with evidence, how the heart is the most electric instrument in the body, and how it generates an EMF.
The nature of the heart, how it varies in speed and aggression based on mood will no doubt alter the frequency of the magnetic field.
As for Aether. That is an old expression to describe the electrical forces that fill space. Today we call it radio waves or electromagnetism, the term aether is good enough. It's real and we use it all the time, from radio and cell phones to wifi routers. It can even be used to power things wirelessly.
On a side note, some people seem to think EMF's are only good for technology, as if it's existence in the universe has been solely awaiting the making of technologies that can utilize it.
Science has confirmed, the brain is responsive to electromagnetic stimulation. In the right spots, with the right frequency, they have succeeded in curing depression.
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My adopted theory is. Radio waves, and how we've been amplifying it on many frequencies and transmitting it through, however you want to call it, space, air, or blasting it into the aether. It surely makes a lot of noise so in many a case, we've been blinded from our empathic abilities while the hearts of others, their EMF signals, share the same space as ALL those radio stations that are on us the hell right now.
In essence. There is a disturbance in the force. Though it's right in front of them, people don't want to believe unless the rest of the flock wakes up.