Dear Grey,
I vote we help this individual get rid of the symptoms you described in your post, and then they will "see" clearly to be empowered to learn instead, how to walk with GOD, and then, they will be able to discern between good and evil, and probably sin much less.
Does this sound like a good idea to you?
These two '' ailments '' that you mention ............dementia, and multiple personality disorder, are mere attempts on behalf of the medical establishment to categorize or name a problem that they don't understand, because their medical training doesn't include knowing how to deal with SOUL OR SPIRIT ISSUES........They're just trained in PHYSIOLOGICAL approaches and modalities to ailments, and they don't know how to treat the WHOLE person..............
I am praying for this individual, even though I don't know his / her name, FATHER knows...............
SeekinHIM