I know what you are talking about (I hope), but I don't think that it is just a tear into another universe/plane of existence...
I personally think that it is where the universe began. If the big bang did happen, the centre of the unusual blank space could be the origin point of the big bang.
If the big bang was created when two universes collided (which is possibly the only way to get enough power to spawn an entire univers out of virtually nothing.)
Also, it could be the point where universes are touching, or maybe more likely where this universe meets the void in between universes.
But the latter isn't likely, because the vacuum in the void would suck everything into it...
The former also isn't likely because imagine the energy needed and consumed to keep that gateway open! If there was actually a gateway, then it should be giving off almost infinite amounts of energy.
But it could very much be just a point of origin where the big bang occured and no "gateway" was created, because if it was created then it would be very detectable, and dangerous with the extremely large amounts of concentrated high-danger radiation given off...
So, I don't think that it is a tear in the universe, but it could very much be where the big bang occured...
Also, don't forget the moment the big bang disappated there wouldn't be nearly enough energy to keep the gateway open.
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