Look, the druids were adorable creatures with their magical rituals, but nobody cries after them, because as soon as you are overcome by military might, you become ridiculous, passe.
Poland, like other East European nations, has managed to retain the national spirit - unlike the Celts perhaps - even when our countries were totally submerged by Germans, Russians, Habsburgs, Turks, but has this made us stronger? No, these countries are just shadows of their past glory. Poland was once a strong kingdom, famous for its army, and likewise Czechs, Hungary, Bulgaria. After centuries of weakening these are just shadows, like Greece. Even Russia has its best days behind her - these were in the good Tzarist period in the 19th century, which they themselves destroyed through revolution.
So Poland exists, but at the mercy of superpowers. It's not that we would like to be a superpower again, but even the basic sense of safety is difficult to achieve.
So the fate of Poland is not a positive scenario for another country. It's our geographical location mainly, and overpopulation in Germany, and the growth of Russia which now seems to recede, but don't imagine we are a strongman besides some spiritual strength and lots of "experience" gathered throughout the centuries.
It's recollecting past glory amid material problems nowadays, but we are not very materialistic. Sth like Spain, Portugal, we don't have nukes like France. But comparing us to Ireland is not correct, because the Irish were not a full European kingdom in the Middle Ages, the Renaissance, the Baroque.