Interpreting the Rising Poem

[MPNZ]

There's a lot of spiral imagery, but the English version especially is littered with aquatic association words. Whorl, dross, eddy, flux, flow, gyre, oceans.
Wasn't the first expansion a toss-up between sea and sky (the sky being Heavensward)? Maybe it's a very vague nod to the next expansion somehow, assuming there will still be a water theme. Then again, it's _only_ the English version which has this, the others have no such theme.

Just tossing ideas at the wall :P

So, they're going to introduce Blitzball and swimming areas