There is knowledge of God and the spiritual nature of man, as well as other types of reality..., that are not reducible to the world dealt with by the so-called "natural" sciences. The idea that knowledge - and, of course, reality - is limited to that world is the single most destructive idea on the stage of life today.

A disciple is a person who has decided that the most important thing in their life is to learn how to do what Jesus said to do.

The most important thing in your life is not what you do; it's who you become. That's what you will take into eternity.

No matter how lost a person is, they still draw on their body. So the body would be more like the motor.

Now, of course, you have guidance devices and all sorts of things. The soul would be more like the way this is all hooked together, a system of coordination.

The Spiritual disciplines are wisdom and not righteousness.

The real issue relating to exclusiveness is whether or not the Christian actually has a relationship with God, a presence of God, which non-Christians do not have. Apart from Christian spiritual formation as described here, I believe there is little value in claiming exclusiveness for the Christian way.