My English might be the worst you see on this website so be ready .
hahahaha you are my hero...
Watching sparks fly,
not exactly the right answer let me elaborate , when I was a child I used to play around with circuits and some times make wrong connections which makes some sparks. As I grew up I
know play I played with cables and sometimes tweaked connections in my house.
I also play around with my brother's car connections.
When sparks fly I know that that the circuits are working and this gives me the joy because I know that it is alive with energy. ---beautiful!
It's like knowing that blood still pumps in somebody's body and he is alive. When I see that my circuit is alive this gives me great pleasure.
Perfect!! You have great imagery... when sparks fly!!