poem to the idea of divine creation The poet says So it must have been after the birth of the simple light This line recalls the Bible s Genesis where God first creates light The morning at Fern Hill Farm feels like the first day of the world The simple light symbolizes the birth of life the awakening of the earth and the innocence of childhood Through light Dylan Thomas joins the natural world with a spiritual vision Light as the Symbol of Time and Change As the poem ends the light changes its meaning It becomes softer and sadder The brightness of youth fades as Time takes control The poet still sings but he knows that light like childhood cannot last forever The golden glow of morning slowly turns into the dim light of memory In Fern Hill light stands for life itself bright pure and divine yet fleeting It begins as the glow of childhood joy and ends as the gentle light of remembrance Dylan Thomas uses light to show that life like dawn is beautiful because it must pass