Sea in which we intertwine

Sea of fishes, sea of mine,
sea in which we intertwine.
Be it barren or be it fair,
we all sail to it from everywhere.

Does it scald, or does it freeze?
Is to swim a misery?
Do we, the seamen, return ashore
or remain in it forevermore?

Does it scald for sinners, freeze for saints?
Do those who dive get whipped with pain?
A waking paradise or an abyssal sleep?
No end to the secrets the sea does keep.