I’m not sure from this statement that you really want to know…
My guess though is that you are referring to the OT prohbition on Graven Images because there was no reference point for God. Remember, if you are going to follow that logic, that you also could not speak the name of God either. Thus if you have that poster with all the names of God you are putting yourself in the same boat with the rest of us… just something to think about.
More to the point though no one prays to Statues or Icons and in general Icons are much more prelevant in the Eastern Church and the Orthodox Church than in our Western Rite.
There are links I could post, which I might but lets take a step back and ask why Christ came to Earth?
My guess is that we agree on the obvious answer, for our Salvation, right?
But what, minor, things were accomplished through that which might fulfill the needs or humanity?
One of those, IMHO, was tangibility. Why did the Hebrews build the Golden Calf? Do you think that they really believed it could save them after witnessing the might of God? No it was because they needed something they could better identify with. Why did the Hebrews want a King when they had God? the short answer of course if that they wanted to be like everyone else…
God knows our hearts as He know the hearts of all mankind. Before Christ His revelation was to a small subset of humanity. As it grew from Adam and Eve (persons) to a family, to a tribe, then to a nation God revealed more of Himself as we were ready.
When God’s Covenant with Humanity was expanded, through Christ, from a Nation to the entire World some things changed. Much of humanity were use to being able to “see” their gods… just like the Hebrews desired.
Through the Revelation of Jesus Christ to Humanity, God not only revealed more aspects of His nature but also gave us a physical / tangible picture with which we could identify. Christ’s presence on Earth helped the early followers of “the way” by giving them something to idenitfy with. I’m sure it also helped conversions early on and gave us, even today gives us a representation of what He looked like while on this earth. God knows what we need, even when we do not. He led Three Pagan Magi to Christ because they were truly looking and needed Christ, just like He gave us an Image of Himself because He knew we would need it.