Final answer:
The 'realms of gold' in the first line of 'On First Looking into Chapman's Homer' refer to the vast and rich world of literature and poetry.
Step-by-step explanation:
In the first line of 'On First Looking into Chapman's Homer,' the speaker refers to the 'realms of gold.' The 'realms of gold' is a metaphorical expression used to describe the vastness and richness of the world of literature and poetry. It represents the exploration and discovery of literary works, specifically the translation of Homer's epic poems by George Chapman. The speaker is expressing their awe and appreciation for the beauty and value of these literary works, suggesting that they have gained a deeper understanding and appreciation for the world of poetry through their exploration.