...it is
ALL just change... "our civilization" has as much, and as little, "meaning" as the life of the 9427th microbe (counting from the bottom-left) that you inhaled 5 seconds ago, and as much/as little as the "meaning" of existence of the 54362149th grain of sand (counting from the top-right) resting inconspicuously in the Sahara desert, exactly 2.793 miles west of the town of Mut in Egypt
It's all in the brain... the grand illusion of human self-importance
When it is time for this civilization to go, it will go, just like that microbe or the grain of sand -- with just as much "meaning" to it