The message of the song is that the singer has found such a deep, fulfilling, passionate love in their life here on earth that, despite it's promise of eternal beauty and peace in God's presence, as far as they are concerned heaven can wait.
I'm not going to waste any time in bashing the song or it's lyrics. This is one of the most simple and timeless love songs in modern music. But it does provide an opportunity to take a closer look at one of the most wide-spread mistakes that we as humans make. The mistake is in not understanding and accepting that no matter the beauty or peace provided us by anything or anyone here on earth, it pales in comparison to what is promised in Heaven.
The vast majority of us operate within the framework of our daily lives as if this is it, that this life is the only one that we get, so we need to live it to its fullest. How many times have you heard the phrase "life is short" or "life is meant to be lived" in defense of some course of action that someone is taking.
The truth of the matter is that, while a human lifespan on earth is relatively short, our promised existence in God's presence in Heaven is eternal. And while we certainly should strive for happiness and peace in our time here on earth, and strive to spread those to others, life is not meant to be lived to the point that we experience every sensation, good or bad, in our human lifetimes.
