Basically, the mission is the 30-second elevator speech that describes the program. Usually the mission statement itself remains consistent over time. However, the way the mission is implemented frequently changes over time with advancements in clinical science and practice, shifts in in training pedagogy, and the evolution of the sponsoring organization’s structure. In practical terms, this means that while the mission remains constant, the goals and objectives will likely be modified over time.
Quoting Henry David Thoreau: "It's not enough to be busy, so are the ants. The question is, what are we busy about?" The Mission, Goals and Objectives give direction to our ‘busy-ness’. They are the blueprints that determine the form and function of the program.