I'll tell you something of the forbidden horrors she led me into - something of the age-old horrors that even now are festering in out-of-the-way corners with a few monstrous priests to keep them alive. Some people know things about the universe that nobody ought to know, and can do things that nobody ought to be able to do.
In Bach there is still too much crude Christianity, crude Germanism, crude scholasticism; he stands on the threshold of European (modern) music, but he looks back from there to the Middle Ages.
From time to time, little men will find fault with what you have done...but they will go down the stream like bubbles, they will vanish. But the work you have done will remain for the ages.