Maybe, just maybe this song is about being famous/being on tour.
They discovered fame with their first album, thus they felt unique, larger than life and they felt the impossible is possible for them. When on tour, they saw what they never dreamt of seeing, their eyes were the size of the moon ---> your eyes get very big when you're amused and surprised. They were discovering fascinating things, like if they were living in Disney World.
At some point, when they went to create their second album, they went back from their frantic life to a more normal life and rediscovering their "humanity", so to speak, maybe reconnecting with family, loved ones, etc... but this "going back to normalcy" can be enjoyable - maybe now that they've seen both sides of the coin - they've discovered they enjoy being simple people as much as they enjoy being famous and recognized everywhere, thus the
"We're feeling so good
Just the way that we do
When it's nine in the afternoon"
Maybe, just maybe this song is about being famous/being on tour.
They discovered fame with their first album, thus they felt unique, larger than life and they felt the impossible is possible for them. When on tour, they saw what they never dreamt of seeing, their eyes were the size of the moon ---> your eyes get very big when you're amused and surprised. They were discovering fascinating things, like if they were living in Disney World.
At some point, when they went to create their second album, they went back from their frantic life to a more normal life and rediscovering their "humanity", so to speak, maybe reconnecting with family, loved ones, etc... but this "going back to normalcy" can be enjoyable - maybe now that they've seen both sides of the coin - they've discovered they enjoy being simple people as much as they enjoy being famous and recognized everywhere, thus the
"We're feeling so good Just the way that we do When it's nine in the afternoon"