Deep Purple The Mule Lyrics

No one sees the things you do
Because I stand in front of you
But you drive me all the time
Put evil in my mind
Used to sing and say my prayers
Live my life without a care
[. From: http://www.elyrics.net/read/d/deep-purple-lyrics/the-mule-lyrics.html .]
Now I have become a fool
Because I  listened to the mule
How can I change when my mind is a friend of a Lucifer hid in the ground
Just another slave for the mule