What is the author's style in The Singer's House by Seamus Heaney?

"The Singer's House" is saturated with symbolism. From the very beginning of the poem, the reader is let inside Heaney's mind, and shown images that often exist on two levels—the literal and the symbolic. When Heaney poses the question, "What do we say any more / to conjure the salt of our earth?" he could be talking about actual salt, especially since he has mentioned saltminers in the previous stanza. However, given the context of the poem, it is obvious that Heaney is referring to the working classes of Ireland for centuries, the salt of the earth folk who have provided a foundation for the island. Heaney implies that he does not know what to say to "conjure," or summon, these people. In other words, he wants to wake his people up and get them to embrace a unified Irish identity, but they are lost, unable to be enchanted—another meaning of the word, "conjure."