It's a standoff. Two cowboys, back to back, step off away from each other, aware that the other will be soon turning around, taking aim and hitting their mark. The sun overhead is at it's height, the dusty road is wind-swept in swirls and on-lookers are poised for the action.
The cowboy displaying confidence fortells the future. Ease of manner, which comes from faith in their strengths and focus on their goal, is the survivor's attributes. Ability to think in the moment. Nimbleness in reaction. Each of these traits come from being unclouded by fear.