"Well I dreamed I saw the knights in armour coming
Saying something about a queen
There were peasants singing and
drummers drumming
And the archer split the tree
There was a fanfare blowing
to the sun
That was floating on the breeze"
To me the above lyrics have little or nothing to do with the rest of the song. It evokes medieval imagery which seems out of context since the rest of the song seems to be set in contemporary time as illustrated by the next lines:
"Look at Mother Nature on the run
in the nineteen seventies"
(later updated to 1980's, then 20th century)
The above lines bring to mind man upsetting the delicate balance of nature with pollution, runaway technology, threats of (nuclear) war etc.