Lyric discussion by IvoryKeys618 

Cover art for Treasures lyrics by Rocket Summer, The

"For where your treasure is, there your heart will lie also." -Matthew 6:21

To me, this song seems to refer to that verse. His treasure is "heaven." Therefore, that's where his heart lies as opposed to so many others who try to find their treasure elsewhere and "dig, dig, dig. until they can't get out." Their heart ends up in the bottom of an inescapable hole.