Nowadays it's more about the eating of mooncakes.
Mooncakes (lotus seed paste filling) from John the Scientist who sent them from San Francisco, where they're sold year-round. Thanks John! :)
A mooncake is not a cake. It's a dense pastry with a thin outer crust and either bean paste or lotus seed paste filling the interior. Often there is a whole egg yolk in the middle. Bean paste is used in lots of Chinese bakery items that are available all the time, but lotus seed paste is only found in mooncakes. The latter is more expensive but also tastes better.
Mooncakes should not be confused with moon pies. Moon pies (which are not pies) are a popular chocolate and marshmallow snack item in the south-central U.S. They're yummy too. :)