The lyrics present a stark contrast between the ephemeral beauty of a "day" and the hidden depths of a "night" within a "sky city." The initial impression is one of light and perhaps openness, a place bathed in sunlight. However, this bright facade seems to mask something more complex, hinting at a duality that defines this elevated realm. The city exists in two states, suggesting that its true nature is not revealed in the clarity of day but in the mystery of night.