Have the oceans dried up and the clouds run out of water? Has the sky exhausted the oil that fuels the sun and moon?

This couplet uses powerful imagery to ask rhetorical questions. It wonders if the vast oceans have dried up, or if the clouds, which bring life-giving rain, have run out of water. It further asks if the sun and moon, celestial sources of light and energy, have somehow run out of their essence or "oil." Essentially, the poet expresses deep disbelief and concern, questioning how something so fundamental or naturally abundant could possibly be missing or failing. It's a way of saying, "How can things be so wrong when the very sources of life and sustenance seem to be disappearing?" It conveys a profound sense of dismay at an unexpected and severe lack.