jeq.  'un chIl.
ben tap De' 'Il.
Du' vetlh je pe' lo' wa': tIr.
jeq. bel Daw'.
nIb ro'. QIS Qaw'.
nIn chIl. qam tamwI' ngev: DIr.

This means nothing particularly important in Klingon.  What gives the poem its power is not the meaning, but the sound.  Speak it out loud and you'll understand.  If you don't get it, recite it for someone else and let them explain.