Corduan points out that bridges serve a number of important purposes:
1. They facilitate evangelism. Regardless of all of the other discussion, this is considered to be the most important reason. They make it possible for the Christian to relate to the non-Christian so as to make a more plausible presentation of the gospel.
2. They help us live together in a civil society. The plurality of religious cultures in the contemporary industrialized societies has become a given. Reaching out across our individual boundaries (where legal and ethical) will contribute to the life of a properly functioning democracy.
3. They identify where we can make a common cause with others on social and ethical issues-and where we cannot!
4. They contribute to the ongoing work of a theologian in exploring the universe that God has put together, including the world of the human heart.