How are we to be salt and light in our world? How do we counter the negative influence of fundamentalism in our own lives?

I think the best way to be salt is to look at what salt does:

First off, it adds flavor. We can add flavor to the world around us by allowing ourselves to transform the world through our message of Christ. There is nothing quite like adding salt to a bland soup to give it flavor, much like there is nothing quite like adding Jesus Christ to the heart of a bland human.

Secondly, salt preserves. We have the opportunity to preserve the Gospel Message by standing up for what we believe, becoming defenders of the faith like so many have before us. We must preserve the Gospel message through sound doctrine, teaching, and training, so as not to be led astray.

Finally, salt help fight infections. We have an opportunity to bring out the worst in people so that Christ can bring out the best in them. Sometimes we have to attack the rough parts of peoples lives before we can get connected to the source, the heart.

We can also be light much like we can be infection fighting salt. Darkness shrouds the senses, confusing judgment and decision making. Our light can shine and give guidance and direction in a world full of dark discrpeancies and misleadings.

We fight fundamentalism by showing ourselves trained and approved in the Gospel message, and subscribing to sound doctrine that can be backed up by the Word of God, by our traditions as a church, by our experiences, and by the use of reason. If we can use the 3 latter to support the former, we can effectively fight the misleadings of fundamentalism and liberalism, and continue to put out the track that God has set for our denomination.