Once - Edited

[NakedBear]

Greetings, salutations, and all that shit.

Once a river ran
inside of me.
Emotions unsettled This first stanza would be well followed by the third one about salmons (although swimming against the stream is an old image - even I pick up on it, after all. ) Then you could remove the word 'Emotions' which kind of gives the game away, and instead say 'currents'; then you expand the salmons verse so that they feel various emotions as they traverse the currents. That's just an idea. Take it if you like.
balance, flowing
smoothly.

Lovers lounged
beneath the trees,
nourished by its lounging lovers is a bit old, but the idea of nourishment by the tree's movement - nice. You could expand it a bit.
movement.

Salmon swam
against the stream,
headstrong and
determined.

Once I felt hates
pitch black night. You felt the night? expand. Tell me how the night made you actually feel, mentally and physically - then connect that to the notion of hate.
Scowling madness,
eyes alight with
angst.

Once I felt loves
full moon glow. Again, how does that glow feel. You're expecting the word 'love' to define the feeling of the moon's glow, but really you should be doing it the other way around (as you did about with hate), and make the glow define the word 'love'. Love is a big old sloppy cunt that has had almost every human notion shoved into it for safe keeping. You have to tell us what keepsake you want us to seek around for, in there.
Perfect stillness,
each moment slowly
slipping.

Once I felt loves
setting sun. Again. Love should not define anything. Other things should be used to define love.
Destroyed myself
regretting one
mistake.

Once,
I felt something.

This sounds pretty good. I think you could change the way you approach these images, and make it all work to good effect.

Good night, and I hope I wasn't too detailed for Mild.

Oh yes, you should not have 'hates' but "hate's", not 'loves' but "love's", and so on. Mark the possessive with apostrophe 's'.