Fear

I'll answer you as I did in another contest (It's obvious that this is my very personal point of view, so you can have a complete different and respectful opinion):
"It’s interesting how different we are from each other. IMO the definitions of emotions are symbolized in our minds and the differences depends much from how we are used to recognize and manage them in our experience... The beauty of a certain kind of photography is strictly connected on how the photographer succeeds in making you feel like him at the moment of the shot. Someone is very good in doing it, others simply not..."
The winner of this challenge simply will be the one who'll succeed in sharing his point of view with the most of the voters.
Cheers,
Stefano