I’m sitting in the Virgin Australia lounge at Melbourne airport watching planes come in and out and waiting for my turn to board one of them. I have seen again today how important it is to step out of your normal world and engage with others. Missiologist Ralph Winter identified two structures within the body of Christ, the mission group and the local church. Mission groups come in all shapes and sizes. In many ways a mums group is a mission group, and so is a business breakfast and so is an artists colony and so is an organisation like Fusion. Most of us find our way into a mission…