In fact, the opportunities to act properly, the potentialities to fulfill a meaning, are affected by the irreversibility of our lives. But also the potentialities alone are so affected. For as soon as we have used an opportunity and have actualized a potential meaning, we have done so once and for all. We have rescued it into the past wherein it has been safely delivered and deposited. In the past, nothing is irretrievably lost, but rather, on the contrary, everything is irrevocably stored and treasured.