This is the central metaphor for a "controlled" madness. The protagonist is drunk on the presence of the other, implying that this love is a necessity for his spirit, much like wine is a staple of life in the Adriatic.
The song works because it balances . It uses a common, earthy element (wine) to describe a complex, divine emotion (transcendent love). It reminds the listener that the best loves are those that get better with every passing year, even if they make us a little unsteady on our feet. Oliver Dragojević ~ Ljubav je tvoja kao vino
The song compares love to wine, but not just for its sweetness. It explores how love, like a fine vintage, possesses the power to both and overwhelm . This is the central metaphor for a "controlled" madness