There are a number of sins you can commit with metaphors and one of them is literalism.
To take a metaphor literally is a sin - but worse it leads into absurdity.
And we have caught a sinner in the full flush of her sin - taking the soul literally.
But why should we be surprised?
MBTI commits exactly the same sin - MBTI takes the personality literally.
MBTI is based on the sin of literalism.
And the wages of sin are that you will be turned to stone.
And this is precisely what MBTI does, it takes the personality literally - it treats the personality as as thing - it turns the personality to stone.
MBTI reifies the personality.
But just as Pygmalion brought his statue, Galatea, to life by falling in love with her, we can bring our personalities to life by falling in love with one another.