@link the cook I can definitely see where you're coming from. The message can be from the Mask Children to Link or to the player, depending how deep you want to read into it.
Now that I re-read this thread, I definitely think it's at least partially referring to the Skull Kid. All the Skull Kid...
The Zelda series is full of quotes like this. I mean, there are different times during the various games where the writers really make you think about life. It's part of what makes the series great.
But I had never actually considered the Moon Children quotes. They really are something...