Oceans and galaxies

Don't tell me you know me,
because you've touched me.

Don't tell me you know me,
because we've talked once.

I'm like an ocean and
the only thing you know about me
is the horizon.

I'm like a whole galaxy and
the only thing you know about me
is the view of a person standig on earth.

You don't know my waves,
you don't know my stars.

So don't tell me you know me,
unless you walked in my shoes,
drowned in my ocean,
felt lost in my galaxy.