After making a post in the thread about Demon Lovers, I was thinking about the process by which entities cross over and meet us in this plane. I thought the following, in regards to the 'rules' of this plane not applying beyond:

Assumption: The rules of this plane do not apply to the realms beyond.
Query: Is there such a place in our plane where this already occurs?
Answer: Yes.
Query: Where?
Answer: Black Holes: The laws of time, space, and physics break down.

I took that conclusion, and brought it further...

Query: Is it feasible to utilize a Black Hole as a means of linking this plane to the realms beyond?
Answer: By this logic, yes, but impractical.
Elaboration: Our bodies are tied to this plane in time and space. Should it be subjected to a breakdown of time-space, likewise, the physical existence would break down.
Query: (IMG:style_emoticons/default/Lighten.gif) What about a localized time-space phenomenon?
Counter-Query: Such as?
Response: Not a break, but a bend in time-space. A gravity well, or thinning, of the veil of time-space.
Answer: If enough energy is supplied from the other end, a feasible a link might be established. At the very least, an irregularity may even act as a beacon, as localized time-space phenomenon do not naturally occur within Earth's gravity field.

This brought on another point: We live in the distortion relative to Earth's field. To us, this is -normal-. But, if I could hypothetically bend space and time just slightly relative to Earth's gravity, perhaps in an oscillatory fashion, it seems feasible to me that an inter-dimensional beacon can be established by which entities may be attracted to us. Think dipping a bobber in a lake, to cause ripples. Not too big, but anyone looking will notice.

My thoughts then turned to Tesla's experiments, which revolved around Electromagnetism. Would a properly contained EM (Electromagnetic) flux apparatus be able to cause time-space fluctuations? (IMG:style_emoticons/default/hmm.gif) Does such a device exist? The only technology capable of it, that conventional science acknowledges, are multi-million dollar accellerator labs!! (IMG:style_emoticons/default/greedy.gif)

Now, after a few minutes of pausing to think after that last paragraph, I liken the idea similar to the thumper devices used in Dune to attract the sandworms.

(IMG:http://www.sorvan.com/games/dune/TreacheryDeck/Thumper.gif)