Past Memories

Somehow, she ended up in a part of NERV she'd never seen before. It looked like it hadn't been used in years. Confused, she wandered a little further.
Ahead of her, there was a heavy metal door, dusty and rusted at the hinges. For some reason, she felt like she had to look through that door. But she wasn't sure, given its condition, if it would open. The surprise came when she gave just a light tug at the heavy door and it swung open.
The room was dark...but she had no problem making out the lab equipment inside.
Or the shattered tube in the center large enough for a human.