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> > $ a thing
> > @ means thingies you can get by using numbers
> > % thingies you can get by keys (which kan be numbers, strings etc)
> >
> > So if you want a thing out of a thingies you use $ and not @ (thingies)
> > nor % (thingies)
> >
>
> however, as a comparison for the %a{foo}, similarly to doing @a[0,5,9] to
> get an array slice, you can do @a{item1, item5, item9} to get a slice from a
> hash.

Whoa! That example just blew my mind. Now it is perfectly clear. Thanks!