Did you know that approximately every seven years, every cell in your body is replaced by entirely new cells? When this happens, it is no exaggeration to say that you have an entirely new body. And yet, you are the same person both to yourself and to others. Similarly, an adult human being looks quite different in his external appearance from his infant self, yet no one would question that they are one and the same person. How can this be? How can we grow and develop so dramatically, and yet retain our identity? This gets to the heart of what philosophers describe as essence, or the underlying metaphysical or non-material reality that makes a thing what it is. A living thing can grow, change, and evolve while retaining its fundamental being through the principle of continuity of essence.
Liturgy and the Living Tradition of the Heart | The Catholic Gentleman
Liturgy and the Living Tradition of the Heart | The Catholic Gentleman

