Answer: The metaphor in the poem is:
"Rose candles flicker on the lilac wall / Reflecting in a million flagons' shine."
In this line, the candles are compared to rose and the reflection of the candlelight in the flagons is compared to shine.
This poem contains one simile:
"Guests slide gliding into light like wine."
In this line, the movement of the guests is compared to the flow of wine.
Step-by-step explanation: