Focus on your focus - Part 1

Equestrian sports require that we focus on what we're doing(!), however, is that focus better when it's more internal (in your head) or external (your outside environment)? Is it best to have a narrowed-down attention or a broader one? This is the first of two podcasts about focus - the next one will look at refocusing and how to stop focusing on things we don't control or shouldn't affect us.