"Perfect love casts out fear." It is not be thinking ourselve sright that we cease to fear. It is simply by loving, and abandoning ourselves to the One whom we love without returning to self. That is what makes death sweet and precious. When we are dead to ourselves, the death of the body is only the consummation of the work of grace.
There is an incline from silence to language, to the truth of the word; and the gravitational force of this incline pushes truth on still further from language down into the active life of the world.