Jamie pictured herself running the race course as she prepareed forher cross-country meet . this is an example of

Positive visualization reinforcement. We must assume that because she is preparing for the cross country race physically, mentally she must do the same. Her visualization technique not only helps prepare her mentally, but it also helps build help confidence to compete and perform to the best of her ability whether she wins or loses. 

True. you know, tools like shovels.