Imagine a rough and dangerous, ocean with little old me in it getting tossed around. Not much fun, but there's a rope coming down from the far east. It's secured to something pretty solid in the far distance. I hold onto the rope. However big the waves get, I can stay above water. I even use the rope to pull myself closer to whatever's holding it.
Faith is the rope. It joins us to Jesus. If we hold onto it, we won't go under and will eventually reach the shore.