Very interesting Raud,
Yes, Calleman has that theory, among the now-living representatives of the Mayan culture in Guatemala. I take his words as the best source any day.
It's been a while since I've looked at his work, I couldn't remember how he came to that end date, Is that really so? I've not heard that from any
Mayan representative. Any links would be appreciated.
Lights go out, no more interference.
a possible catalyst for consciousness shift?
Very much so, and I like to believe that you are on the right track. But I think one thing will bring the other. There are people living out in the
wild already and they seem pretty normal. And every time there is a power surge and black outs in major cities, not much of spiritual enlightenment
seems to take place. Wish it could be that easy... 
It's a very subtle thing. if your sensitive to it it's extremely powerful, everyone has experienced it. If your a city person all you have to do is
take a walk in nature, alpha brain waves are the result, a relaxed creative mind.
I believe this is why so many people feel lost or disconnected or even alien to the world around them.
I not talking about spirituality as some sort of magical power. It's a natural balanced state of being. Some believe if you can resonate with the
planets natural rhythm a sort of communication can take place with the gaian mind. I do believe I've experienced it, but I have been practicing
meditating for over 25 years. As well as some other methods I'm not allowed to discuss here.
I think the difference we have here is in the interpretation of spiritual enlightenment. As I said earlier some are already there, some have worked at
it their whole life, and are quite normal on the surface. It's a state of mind, no magical powers, just more awareness of the subtle energies.
So yes one thing may bring another to speed up the process, a catalyst.
If there is anything that could cause a shift in brain waves it is Schumann resonance. Just to add it was Tesla who first measured it, another
instance where his work is wrongly attributed to another.
The other more obvious thing that is taking place is the natural evolution of culture that is reaching an epoch, sped up by the exchange of ideas from
all over the globe. All the corruption and war is a natural part of the evolution that must take place.
I think it is more correct to call it a consciousness shift rather than spiritual enlightenment, you just have to look around to see so many that are
so far from any sense of spirituality or enlightenment that It would be in defiance of natural law for those to get a free ticket without going
through the natural trials. But everyone can and do have consciousness shifts within their lifetime.
Subtle effects with big ramifications, we shall see. Thanks for your posts.