Extended Metaphor: I taste a liquor never brewed

"Inebriate of Air--am I--
And Debauchee of Dew--
Reeling-- thro endless summer days--
From inns of Molten Blue--"

Throughout the entire poem, the speaker sounds like he or she is talking about becoming drunk. However, in reality, the poem  is about a type of spiritual intoxication, rather than the literal type. This is made obvious by the first line of the poem because it is impossible to have "a liquor never brewed". It is the summer days that intoxicate the reader instead and give him or her a drunken feeling, and "Not all the Vats upon the Rhine Yield such an Alcohol!". The speaker compares the dew and air to the drink and the sky to the tavern. This is the setting in which she develops this feeling of intoxication. The bees and butterflies are his or her drinking partners, but because they gain their satisfaction from something physical, the flowers, their joy will end eventually. But the speaker states that his or her joy will never end and uses impossible events that will cause the end in order to emphasize this. A seraph does not wear a hat, and a saint would not run to a see a tippler.