The heart is like a grain, we resemble the mill; does the latter know why it turns?
The body is like the mill, thoughts are the water which makes it turn; the mill creaks and the water recognises its movement.
The water says: Ask the miller, who sends this water down the mill-stream?
And the miller will tell thee: O eater of bread, if the mill turned not, who would be baker?
Many strange things will happen: silence!
Ask God to inform thee.