Idolatry is bad, not so idol worship.
An idolater makes a fetish of his idol. An idol worshipper sees God even in a stone and therefore takes the help of an idol to establish his union with God.
Every Hindu child knows that the stone in the famous temple in
Benares is not Kashi Vishwanath. But he believes that the Lord of the Universe does reside specially in that stone. This play of the imagination is permissible and healthy.
Every edition of the Gita on a book-stall has not that sanctity which I ascribe to my own copy. Logic tells me there is no more sanctity in my copy than in any other. The sanctity is in my imagination. But that imagination brings about marvelous concrete results. It changes men’s lives.
I am of opinion that, whether we admit it or not, we are all idol worshippers or idolaters, if the distinction I have drawn is not allowed. A book, a building, a picture, a carving are surely all images in which God does reside, but they are not God. He who says they are errs.