Saint Augustine's doctrine holds three major truths:
1) That the Bible and religion are more metaphorical than literal, and we are to interpret what materials we are given based on our own reason, and not to take everything at face value.
2) That Original Sin was not the actual act of disobeying and eating of the Fruit of Knowledge, but the crime of arrogance and pride that precipitated the taking and eating of the fruit. As a result, Augustinian thought holds that the intention is the true weight, not the deed. Therefore, the desire to be redeemed and saved is the first step towards true salvation.
3) That the "True Church" is made up of two components - the Church Visible and the Church Invisible - the public act of submission and worship, and the private, internal understanding of God.
Vienna described this song (at a Nashville, TN concert, fall of 2009-ish?) as the story of the "religious experience I haven't had yet."
To me, it is a love song to the concept of private understanding, and of reaching out to faith and spirituality, without necessarily adhering to the confines of religion. The speaker wants to be with God - to know God, and to be loved by God for what they are, and that is the first step in that direction. 'God, please, let the desire to know and understand you carry the weight of the actual deed - let me be your Augustine.'
I am not a religious person, but I am a spiritual person, and I follow Augustinian thought and teachings in a lot of ways.
This song speaks to me in ways I can't even describe - it is every wordless, senseless declaration and desire, every yearning for God and Grace, all the love and hope and want that I could never express, articulated in a way I could never manage to voice.