I. Idolatry - visual misrepresentation of God. B. Seems incredible people could carve something and call it a god. But easy to understand the process. God is unseen, which is hard to comprehend. Bit by bit the image ceases to represent God and begins to take the place of God.
Crucifixes can go through same process.
The paradox is that idolatry starts out with good intentions. An aid to worship becomes the barrier to worship. The twentieth century has its idols also. Liturgy and buildings can take the place of God. Idolatry means substituting the thing for the person.