A Short AnswerRick Meigs
"Jesus told us to go into all the world and be his ambassadors, but many churches today have inadvertently changed the "go and be" command to a "come and see" appeal. We have grown attached to buildings, programs, staff and a wide variety of goods and services designed to attract and entertain people.
"Missional is a helpful term used to describe what happens when you and I replace the "come to us" invitations with a "go to them" life. A life where "the way of Jesus" informs and radically transforms our existence to one wholly focused on sacrificially living for him and others and where we adopt a missionary stance in relation to our culture. It speaks of the very nature of the Jesus follower."
Source: Friends of Missions