While this poem isn't about religion, religious language and spirituality are definitely strong components. It's almost like Stevens wants to present art as a kind of religion. While many of you might be thinking that poetry is a close second to Sunday school on the boredom scale, that's not the relationship Stevens was getting at. He wants us to consider the power and importance of art as something wholly (holy? for sure not holey…) equal to that of religion.
The poem shows us how art and religion are best buds. Throughout history, artists have been commissioned by religious leaders to create art depicting religious themes and stories. In fact, art informs our understanding of religion.
Not so fast there, Friendly McGee. Depsite what this poem suggests, art is often created in reaction to religious and political oppression. The relationship between art and religion is based on conflict.