I'll go through some inside knowledge on these peoples practises.

Being magicians...they work in the invisible realms. They partake in ceremonial practises but they use a higher form of magic.
They converse with the elementals..They gained knowledge through these beings..Some gained an energy form that binds them to these elementals.

I mentioned this earlier in the thread about the ancient egyptian curse in the tombs of kings.

This was put in place by these black magicians by summoning these elemental spirits. As you see they have been doing it since our ancient past.

They opened these doorways through the mystery schools and they unleashed these elementals into our field of consciouness. The corridors of energy between realms can be accessed. That doorway has been opened through our history.
The giza pyramid is a conduit to these realms.
don't get me wrong..the pyramid was the original ceter of learning..to an extent it's highjacked.
They know that people who take drugs...are a good candidate to have these elementals attach themselves to there auric field. the untold damage from this is staggering.

All the set up is elaborate..from drugs, alchol,prescription drugs, certian foods and so on. They bind our auric field to be accessed by these realms of elementals. That's why they are known as magicians.

Magicians work in the invisible realms and know there make up and know what resides in them.