If the body still functions, Matthew is still somehow still intact. Well, at least his soul is in his mind. Even with her brain completely damaged, she continues to believe that Matthew will still exist regardless of their decision. But putting the fate of her soul in their hands is too much for her. If I were Melinda, my only argument would be: why should our souls be attached only to our bodies? Why should we be able to do all of this just to get ahead in our reality? Because his sister can't see that maybe this life is a passage or a test for our souls. Another reason to be careful about the decisions we make while we're here. The weakness of Aristotle's theory is that there is no evidence for the idea that the brain and the soul work together. We know that something has an influence within us for our daily life. But we haven't been able to figure out for sure what it is