In the act of coition, the two seas of blood in the two individuals, rocking and surging towards contact, as near as possible, clash into a oneness.

A great flash of interchange occurs, like an electric spark when two currents meet or like lightning out of the densely surcharged clouds.

There is a lightning flash which passes through the blood of both individuals, there is a thunder of sensation which rolls in diminishing crashes down the nerves of each--and then the tension passes.
The two individuals are separate again.

But are they as they were before?
Is the air the same after a thunder-storm as before?
No.

The air is as it were new, fresh, tingling with newness.