Pope Benedict XVI, in Jesus of Nazareth: Holy Week (really loving this book!)

“‘Eternal life’ is thus a relational event. Man did not acquire it from himself or for himself alone. Through relationship with the one who is himself life, man too comes alive.

Some preliminary steps toward this profoundly biblical idea can also be found in Plato, whose work draws upon very different traditions and reflections on the theme of immortality. His thought includes the idea that man can become immortal by uniting himself to the immortal. The more he takes truth into himself, binds himself to the truth and adheres to it, the more he is related to and filled with that which cannot be destroyed. Insofar as he himself, as it were, adheres to the truth, insofar as he is carried by that which endures, he may be sure of life after death — the fullness of life.

What these ideas explore only tentatively shines forth without a hint of ambiguity in the words of Jesus. Man has found life when he adheres to him who is himself Life. Then much that pertains to him can be destroyed. Death may remove him from the biosphere, but the life that reaches beyond it — real life — remains. This life, which John calls zoe as opposed to bios, is man’s goal. The relationship to God in Jesus Christ is the source of a life that no death can take away.

Clearly, this ‘life in relation’ refers to a thoroughly concrete manner of existence; faith and recognition are not like any other kind of human knowledge; rather, they are the very form of man’s existence. Even if we are not yet speaking of love, it is clear that the ‘recognition’ of him who is himself Love leads in turn to love, with all that it gives and all that it demands.”

We keep searching for a life that holds. Something that death cannot undo.

Benedict traces a thread from Plato to John — the ancient intuition that only by adhering to what is eternal can we share in eternity. But where Plato gestures, Jesus declares: I am the Life. Not a teaching about life. Not a path toward life. The thing itself.

Eternal life isn’t a destination we arrive at. It’s a relationship we’re already either in or not in.

That changes everything about how we live now.