While on the basic level the poem would seem to be a simple metaphor for man's struggles with nature, a more careful analysis suggests a level of interpretation far more relevant to humanity as a whole....
In his poems “Nothing Gold Can Stay” "Birches" "Stopping by Woods on a Snowy Evening" "Fire and Ice" and "Mending Wall" Robert Frost explores the theme of nature, and the human emotion love.
the imagination and human experience
Throughout the poem, Coleridge is speaking to you, the reader, without any stops and with only a few frills, and reflecting on his life. Frequently, in the Conversation Poems, Coleridge seems really depressed—having a bad marriage and being addicted to opium can definitely do that to you. But "Frost at Midnight" is one of the brighter moments. It's actually fairly optimistic, basically amounting to a prayer and a benediction for his baby son, Hartley (who himself became a poet). It's a great meditation on how the human mind relates to the cosmos around it—to Nature and (Coleridge being a Christian) to God. And those aren't just hippie concerns; they're universal.