Summary:
Seneca uses the metaphor of shipwreck to illustrate how little we actually need—and how freeing it is to let go of excess.

Interpretation:
Disaster often strips life down to its essentials, revealing how much of what we cling to is unnecessary. Seneca suggests we don’t need to wait for a catastrophe to learn this. We can choose now to shed what is superfluous—possessions, attachments, even worries—and discover the strength that comes from needing less. True security lies not in accumulating, but in realising how little can be taken from us. By rehearsing “shipwrecks” in our minds, we prepare ourselves to face loss with calm, and perhaps even to welcome the simplicity that remains.