Whoa now, let's take a step back here.
My contention was with the assertion that human existence is insignificant because of its temporary existence on a watery rock floating through the vast universe. My problem with such statements is that they quietly assert the significance of size and temporal endurance without reason. If we were huge and lived for thousands of years, would our existence by any more significant? Does an insignificant 70-year life on earth suddenly become significant when it's extended infinitely through time?
Secondly, by your own admission the perspective required to value significance requires an agency. I don't see a reason to take the universe as having such a feature, and so we have no reason to argue about our own (lack of) significance in the eyes of the universe, since there's no one looking through those eyes anyways (unless there is
)
My statement regarding my hypothetical faith came from a line of reasoning independent of this one.