When Morning Winds Had Not Yet Come

[FreeIt]

I prefer the first ending. I thought "slipping away" conveyed a silent departure marked by distaste in tune with reality. "Sighing" makes your point a little less ambiguous, but it sounds a little whiny to me... but that's my own perception.

If you keep it with the change, I recommend you make it flow smoother by changing up some word placement

Original

But I untie my skiff, unknown,
and sighing, drift to sea alone.

to

But I untie my skiff, unknown
and sighing, to drift the sea alone

or

But I untie my skiff, unknown,
sighing, to drift the sea alone