Think of space as a 3d field- not empty.
The field is made of many layers of spandex, one on top of the other.
2 bb’s in the spandex are in same layers ( z) and 10 inches apart on the xy plane.
Now think of something (or many things) that pull the spandex, not the bb - between the bb’s- Creating a mound.
Now the bb are closer or further apart depending on whether they travel on the same spandex layer (further), or through spandex layers (closer).
This is analogous to changes in field density of space.
Or maybe not…
Your analogy is like the sun being at the bottom of a gravity well.
Just as earth is at the bottom of a gravity well?
The mass of both push down the fabric of space—so that things around them are pulled into them.
Correct?
So hermiticity measures the slope of the the gravity well?