Chance Encounter Scenario:
The holographic displays were flickering, while the black outside viewing ports were either obliterated or dimmed to near zero, as the onboard AIs were routing all available power to the shielding systems. Yet the oncoming onslaught was such that Nabresh could see that rifts were starting to ...Discontinuity...
Nabresh blinked. "Am I dead?" he wondered briefly. Still in his hundred-g suit, most of his sensory implants reported back, albeit with mostly nonsensical values such as out-of-bounds readings from the temperature, pressure and neutrino monitors.
Using what he thought were his regular eyes, Nabresh could see the dark outlines of a giant hall. A narrow central corridor was lined with parallel stacks of book-cases. And he could sense presences, busily shifting through the corridors, although his eyes could not detect anyone.
Just as Nabresh started to wonder if these ghosts were simply the delayed result of the magnetic overpressure he'd been subjected to on his ship in what seemed like only seconds ago, there was a sudden change in the presences. They were suddenly hurried, and started to become more distant, as if they were all fleeing in the same direction. Nabresh felt the strong urge to do the same, but hesitated.
Curiosity got the better of him, and as he waited, energetic flashes of light invaded the hall much like the blue-red flashes of a space-station ambulance ship, except these were blue-gold. The hall's geometry had shifted imperceptibly, with the central corridor now a vast opening. Something was coming.
Nabresh now got an overwhelming sense of dread, and knew that he had to flee, but was somehow frozen in place. The flashes increased in intensity rapidly, and became almost painful. Then, suddenly, he saw it. It was near.
In appearance it seemed like a small golden globe, about the size of a grapefruit or a small basketball. Against it were pressed with unimaginable pressures two twisting dark-blue hemispheres, each rotating in a different direction.
For a brief moment, Nabresh knew he had encountered an alien god. As it neared, the sense of horror grew without limit, and Nabresh's last tought was "I should have fled with the others" as the sheer uncaring passing presence of the entity ripped his being to shreds and erased him, and whatever platonic-shanonic construct 28th century physicists chose to represent souls, out of the very fabric of spacetime.
TL;DR-WTHDYGTTTWTTS - (Where the heck do you get the time to write these things, seriously?) It's big. It exists in a place so strange your mind reduces it to a more familiar sight to protect itself. It's so alien it's painful to look at. It will crush you and destroy your soul, probably without even noticing.