Samudra Manthan and the role of Alcohol - Suras, Asuras and Varuni

Question

The relationship between Samudra Manthan and alcohol came up in a comment thread to another question, with one commenter stating that alcohol was forbidden in Hinduism because Daanavs drank alcohol and lost the chance at the amrit (nectar of immortality).

I tried to follow up on this thread myself, and came across these seemingly contradictory bits of information:

Varuni or Sura, goddess and creator of alcohol - taken - somewhat reluctantly (she appeared dishevelled and argumentative) - accepted the demons. _{[source = wiki mentioning Horace Wilson's translation of Vishnu Purana]}1

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According to the Vishnu Purana, during the Samudra manthan or "churning of the ocean", the daityas came to be known as asuras because they rejected Varuni, the goddess of sura "wine", while the devas accepted her and came to be known as suras. _{[source = wiki mentioning Roshen Dalal's Hinduism: An Alphabetical Guide]}2

Then there's the point that Varuni is the consort of Varuna - who is a Sura - the god of water, but also has the distinction of being referred to as an Asura in the Rig Veda.

Given all this, can someone clarify what exactly was going on with Varuni (and wine!) during the Samudra Manthan? Do the epithets 'suras' and 'asuras' have any relationship to 'sura' ie. 'wine' and if so, what is that?

Answer 1

While I cannot quote anybody famous, I tried some research. Pls see dictionary meaning of sura-http://spokensanskrit.org/index.php?tran_input=sUra&direct=se&script=hk&link=yes&mode=3 सूर m. sUra teacher सुर m. sura image of a god
सूर m. sUra Crown flower plant [Calotropis Gigantea - Bot.] सुर m. sura image of deity [idol] सुर m. sura symbolical name for the number thirty-three सुर m. sura idol
सुर m. sura sage

Rgveda says Asuras are noble tapasvis. They activate inner divine and kill maya ego bonds. Even Indra Varun are called asura

Answer 2

Though I didn't understood your question, here are my thoughts:

To churn/stir the samudra the energy of suras is not enough, so invited asuras(their half brothers). Churning gives them amrutham (nectar which gives immortality). Suras are stvik by nature and asuras have more rajs & tamas. A wiki on them may be found here, here and here

satvik by products generated during churning are taken by suras(what ever they took, they use for prosperity of universe and its beings) where as rajas & tamas by asuras. wine/alcohol by nature makes one out of his own control, you know the effects of alcohol consumption on health & family. So it is taken by auras. Next came amrutham! to prevent asuras taking amrutham, lord vishnu took the form of lady and started distributing from the end of suras. asuras got much attracted towards that beauty & with the intention to see her for long time stood last in the queue. Their evil mind prevented them form thinking that by their turn how much amrutham would be left. Then intelligent asura rahu took the form of sura and joined between suras, to have amrutham. for more information on the connected happenings, refer this and this wiki articles