The obscure man drinking wine is taught and reminded of his obligations. From Pablo Neruda’s ‘Ode to Wine’:

I love the light of a bottle
of intelligent wine
upon a table
when people are talking.
That they drink it,
that in each drop of gold
or ladle of purple,
they remember
that autumn toiled
until the barrels were full of wine,
and let the obscure man learn,
in the ceremony of his business,
to remember the earth and his duties,
to propagate the canticle of the fruit.