A dance of creation (Edit 1)

[Magpie]

Hi Joseph, this is an interesting poem you've got here that could be interpreted a few ways. I left some comments below.

Bite me!
Said the tail to the head.
And a cycle of universe
started again.  -- I think this opening stanza is excellent in drawing the reader in. It grabs you straight away. You might want to put the first line in inverted commas because it is speech. 

It lasted forever,
the head chased the tail, -- The first two stanzas with mention of a head and a tail make me think of the 'ouroboros' the ancient symbol of a serpent eating its tail. It all fits in with your whole theme of a cycle and eternal return.
in the end it collapsed -- The first line of this stanza says, 'It lasted forever' and then this line says, 'in the end' which contradicts the idea of something lasting forever. Is this intentional for a reason, it may need rethinking.
and was dead.

Seemingly separate,
secretly same, -- secretly the same -- sounds better when read out loud
losing themselves
in their names.

The connecting body
forgotten in words,
describing the world
in a way it is not.

Space and matter
Thought and time
Steam and ice
You and wine -- these comparisons are interesting and somewhat slightly confusing, although that may be the intention considering the previous stanza.

It's on and off -- In this stanza—or perhaps somewhere else in the poem—I would be tempted to slip in a palindrome because it is 'Repeating forever' if you wanted it to. The only problem is coming up with one that you're able to use without people saying it's not original. 'never odd or even' is a palindrome that could almost work in this stanza.
A wavelike pattern
Repeated forever
A delusional fever -- and for this line there is a classic palindrome I'd be tempted to use... 'Dammit I'm mad'
There are such things as palindrome poems but the technicalities prevent them from having much poetic value, plus the fact that they will drive you insane.

Probably best not to dwell on the palindrome idea too much, I think that's probably my obsession, that and anagrams.

Cheers for the read,

Mark