Sleeps a song in all things around
Which dream on and on unheard,
And the world begins to resound,
If you hit upon the magic word.

  
Yeah, it's hard to live free
Full of light in a dark world that no one can see
Lord above, take his hand
Leave some room in your heart for the invisible man

The invisible man is now shaking with laughter
He heard a TV sermon about the hereafter
And he pictures a heaven of unseen souls
And the form of this one man that nobody knows

If you wear a great big leather jacket you can throw it over the bob wire and kind of scooch yourself over it to do the cart wheels. And brodys, if possible.

Had to look this one up.  I actually saw them live when this came out.  It was one of those crazy pairings back in the day like The Monkees and Hendrix.  They opened for Laura Nyro.  Early in her set it became obvious that no one wanted to hear her after hearing Bloodrock.  She was a real trooper and kept on going and gave it her best. 

It was at our local clamshell Blossom Music Center.  People were up on the roof doing cartwheels and jumping off, basically going crazy during her set showing zero interest.  Next show I went to there a month or so later they had little fences with barb wire at the end of the supports to keep people off.