Berkeley's argument for the existence of God

[Mystic]

^what you perceive of the material brain is made out of "opposite things" to the immaterial, right?

But what is immaterial and material, they are opposite. So if the premise something with no commonality with something else can't cause it, is true, than this argument is sound, because material and immaterial are defined to be opposite of one another, and hence don't have anything in common.

So this an argument to show that materialism is impossible. You can't then just to refute deny the conclusion, and say well the material brain causes ideas.

Common on you know better!