A photograph is a moment caught in time but it is not the same as a scene viewed by the eye, instead it is a portion of a scene included within a frame. For example, in a street scene the image may be of a red telephone box rather than the complete street. So a particular element of the overall scene has been deliberately included within the frame. This is where the skill of the photographer takes place, to decide what to include and (more importantly) what to exclude from the frame. Linked to this is the decision of where the focal point of the photograph should be. For example in a large group of similarly dressed people the focal point is often upon the person who stands out because of some slight difference, of hairstyle or hat, etc.
So the next time you take a photograph pause before pressing the shutter button and think what you want to show/tell the viewer about the scence in front of you. What draws your eye to the scene and is the important element within it. The more you do this, the better your photography will become.