As vicar of St Martin in the Fields, Nicholas Holtam reflects on important characteristics of parish ministry and mission. Like Trafalgar Square, it should be open to the world, not inward-looking; it should be a place of prayer and it should be open to the poorest. This was the vision which shaped Dick Sheppard's work at St Martins - as the 'ever-open door'. In the traditions of St Martins, Nicholas Holtam broadcasts regularly, runs the largest homeless...