There are some people who have an image of the church as the place where others will come and do the ministry we have decided they should do. Or they have a dream about how others will come and help them fulfill their dream. It is hard for these folks to understand that God is already at work out in the world doing ministry before our dreams came along. We are seasoned by salt and fire. I would suggest that during this passionate season, in this crucible of Mark, that the believers are called to be seasoned with passion, have salt, and be at peace.
Salt is symbolic of covenant relationship.
The idea that we share salt together is the notion that we have fellowship in God's covenant. It symbolizes, just as the Eucharist meal does, the fact that God's witness is already in the world and we may share in it and join it. The scripture says that salt is no good if it loses its saltiness. Our reason for existing is to build one another up. It is to live in terms of God's greatness in the world.