Hi, Brian.
Quoting from the link you provided
here, I agree with Augustine if the author interprets him correctly.
...Given his(Augustines) strong commitment to literal interpretation, it is fascinating to recognize that the outcome bears absolutely no resemblance to modern literal interpretations.
For example, he concludes that in Genesis I the terms "light," "day," and "morning" bear a spiritual, rather than physical, meaning. Yet for Augustine, spiritual light is just as literal as physical light, and the creation of spiritual light is just as much a historical event or fact as the creation of physical light. What is literal for one person may not be literal for others.
Look at the implications of "spiritual light". If Jesus or the Holy Spirit are a spiritual source of light, this particular light does not have to be limited by the laws of physics. It can shine into the corners of dense minds and hardened hearts.
The author at your source link quotes Augustine as saying that
I have not rashly taken my stand on one side against a rival interpretation which might possibly be better. I have thought that each one, in keeping with his powers of understanding, should choose the interpretation that he can grasp.
It seem that Augustine was quite a thinking chap!
Water is a spritual metaphor, as mentioned by Jesus to the woman at the well.
NIV writes:
John 4:9-14-- The Samaritan woman said to him, "You are a Jew and I am a Samaritan woman. How can you ask me for a drink?" (For Jews do not associate with Samaritans.) Jesus answered her, "If you knew the gift of God and who it is that asks you for a drink, you would have asked him and he would have given you living water."
"Sir," the woman said, "you have nothing to draw with and the well is deep. Where can you get this living water? Are you greater than our father Jacob, who gave us the well and drank from it himself, as did also his sons and his flocks and herds?"
Jesus answered, "Everyone who drinks this water will be thirsty again, but whoever drinks the water I give him will never thirst. Indeed, the water I give him will become in him a spring of water welling up to eternal life."
Similarly, water is mentioned in 1 John.
NIV writes:
1 John 5:6-10-- This is the one who came by water and blood-Jesus Christ. He did not come by water only, but by water and blood. And it is the Spirit who testifies, because the Spirit is the truth. For there are three that testify: the Spirit, the water and the blood; and the three are in agreement. We accept man's testimony, but God's testimony is greater because it is the testimony of God, which he has given about his Son. Anyone who believes in the Son of God has this testimony in his heart.
I wonder if the blood mentioned so often in the bible is a spiritual thing as well? I certainly cant see literal blood being as deep as a horses bridal! RE:
NIV writes:
Rev 14:20 They were trampled in the winepress outside the city, and blood flowed out of the press, rising as high as the horses' bridles for a distance of 1,600 stadia.
Interestingly, John, 1 John, and Revelation were said to originate from the same author by some scholars. They certainly all portray a similar type of symbolism.
“There are two kinds of people: those who say to God, "Thy will be done," and those to whom God says, "All right, then, have it your way” --C.S.Lewis