It sort of becomes a part of us. It's like an extension of all of our senses-- eyes, ears, touch... If nothing else, it functions much like a sixth sense, allowing us to sense danger when it is near, or to see things before they happen. Other things.

It's not easy. I'm still an apprentice, myself-- and I am still learning much about that branch of the Force. Well, I have a lot to learn in general. There is still much I don't know.