Indeed, passion (at a macro-level) is important. But even within your passion lies a long list of tactical things that need to be selected from. The challenge

Indeed, passion (at a macro-level) is important. But even within your passion lies a long list of tactical things that need to be selected from. The challenge is limited resources. You can't do everything (regardless of level of passion), so you have to find some way to pick where you allocate your time and energy.