That somehow using the Gods true voice absolves your soul of the sins you committed using the other song.
I see this notion of absolution popping up fairly often - I'll keep saying it's not a matter of absolution, but a matter of indifferation.
The 'god' thingie just can't tell the pshuke users movements from it's own emotions. The god is blind to the source of it's emotions, so any that are added are indistinguishable from it's own. While the gnosis and anagogic involve intellect and the god thingie is like someone fooled for a second by some bullshit argument, but then realises the bullshit and slams down the ban hammer/damnation/eternal torture hammer.
And yes, indifferation is totally a word! Because now!