An Amalgamation of Words

cold air in hot lungs

I was going to try to make this rhyme
but sometimes
that is not what I need. With that said,
I'll proceed:

Have you ever gone running in winter, like properly winter, when it's freezing cold?
You feel your body getting far hotter
than the air around you,
you see your breath paint the air, you
still feel the coolness cuddling your nose
and your fingers and toes
are still a bit numb. Then when you stop
running, the cool air
violently hits your hot lungs
and your body can't quite process what's
happening but you
can't help but smirk at the strange sensation overwhelming your senses
because it reminds you that
you're alive.
It shouldn't feel so pleasant,
yet you find
your feet running again,
eagerly
anticipating
that same sensation
that comes when you stop,
dead.
You admire the ballet of your
breathe in the air,
and appreciate the numbing nose
and freezing toes
and fiery hot body
and the feeling of ice pouring into your lungs.
It should be unpleasant,
yet
it isn't?
The lactic acid burns at your calfs,
and your quads feel they could give way
at any given moment
and your brain is begging that you just
go home and have a nice hot bath,
but your lava lungs insist
you quench their thirst with
the icy air,
so you keep going.

With all that in mind, how would you feel if I told you this is not really about running in the winter, rather about something altogether different?
I won't be explicit, because that's no fun.
Perhaps this is purely about what it seems, perhaps this is merely the tip of the iceberg.