Might as well be looking up through the surface of a lake.
They're cracks, although they do not go all the way through the surface of the case.
Just then another head popped through the surface between them.
Then two great green plants burst through the surface of the earth.
It barely broke through the still surface of the water below.
As if in response to her call, the two heads burst out through the surface.
Were you now working through the surface of a rough meadow?
The living burst through the surface of the water, crying for help.
On each round trip, some light will be transmitted through the front surface back to the source.
I love this layered quality, of looking through the surface to what is below.
