Well, it’s a fine line: The highlighted passage—"Being alive is as special an occasion as it gets"—could, in principle or at least on its own, also be interpreted to mean that one should always live in the moment and not worry at all about tomorrow or one’s fellow human beings.

This would be a very selfish attitude that considers only one’s own well-being and derives something like a right to be inconsiderate from personal happiness.

In this particular case, that might sound a bit exaggerated, but preserving old things can also benefit future generations by ensuring that records of their predecessors are preserved. How far this should go is, of course, also a matter of balance, especially since there is certainly a responsibility to use resources sparingly and not constantly acquire new things when a need could just as easily be met with what's already there.

So in short: The only point I’m trying to make is that, in my view, it’s important not to forget others—even those who haven’t even been born yet—in the pursuit of personal happiness.