It's a growing trend amond businesses to compose a mission statement in order to keep focused on what really matters to the company. When we look at Jesus, we see He had a clear focus on His mission. By age 12, He was already able to verbalize His purpose: He told Mary and Joseph that He had to be about His Father's business.
As Christians, we may understand the global mandate of the Great Commission, But that can feel so vast in scope that it's possible to lose sight of how we, as individuals, should implement it at home. It's a good idea to think in terms of your own personal mission statement, which is a bit like the popular message "Think globally; act locally." What it means to act locally is expressed in the old hymn "Brighten the Corner Where You Are" (I. D. Ogden, 1913). It begins:
Do not wait until some deed of
greatness you may do,
Do not wait to shed your light afar;
To the many duties ever near you
now be true,
Brighten the corner where you are.
We should never underestimate the power of attending to nearby duties, even if they seem mundane or unimpressive. Second Samuel 23:11-12 (kjv) gives us an interesting example: while all the people were fleeing from the field, Shammah "stood" and "the Lord wrought a great victory." Your mission right now may be simply to stand. Sometimes that's all it takes for the Lord to bring about a powerful victory.