I still am meditating on the topic.
If one does not believe the literal level of the Bible is true, then one will not believe the creation accounts. One might even believe in the pagan teaching of evolution. This did lead to the pagan belief that some humans were not human, at least by some pagan influenced Christians. They could not have had much of a prayer life. They would also have a poorly developed level of morals. This seems to be joined to the moral level of the Bible.
If one does not believe in Adam, then Adam cannot be a type for Christ. And Christ cannot be the antitype for Adam. Thus there is no allegorical level of the Bible.
If one does not believe in the literal Noah, then Noah cannot be a type for Christ. Again, the Ark is a type for the Church. This is joined the moral life; at least I would think it to be. We need to get in the Church to be saved from the floods of evil and sin.
If one does not believe in the literal, one might not believe: “This is my body.”
Then one cannot have much of a life of prayer.
Again, I am just considering the point of how the levels of the Bible are joined to our prayer life.
Well, I am not sure if these thoughts are valid or invalid. I am just thinking out “loud.” I would give this more time, but my wonderful children need some love.