wbt5845 said:
The wine scene was so out of the blue that I figured it must have special significance.
To me, it seemed Gus finally relaxed a bit - raised the blinds, felt safe for the first time in a long time. He then indulged himself with what he has always envisioned himself becoming - rich and cultured.
He goes to the bar to revel in that some and talk wine with his favorite sommelier. He really enjoys it, perhaps feeling happy for the first time in forever.
But the talk of blood and earthiness reminds him he has much work to do to reach his ultimate objective. So a few hours of reveling is all he allows himself before he turns back to the tasks before him.
My 2 cents:
Gus is a divided person. On the one hand, he's a meticulous businessman. On the other, he's consumed with revenge. Incidentally, I think the statements by Nacho's father to Mike were written with Gus in mind. No, not that Nacho's dad was talking about Gus, but that it was to help explain Gus to the audience.
To me, the wine scene was about Gus resolving that he cannot be one or the other, but will always be both. He won't let himself get into another relationship because that kind of relationship manifests as a weakness that can be exploited against him.
Gus had tried to relax and have it all, but he was sad to realize that there was no room in his life for a relationship and that he had already made the choice to be a gangster businessman.
Effective as of that moment leaving the bar, Gus was called away because Gus realized that he was
always going to be called away.