Recently my wife was in the Hospital with a recurrence of a bacterial infection that caused her to have an altered mental status. The Doctors kept trying to tell me that it was a late onset mental disorder. I prayed that prayer it seemed like every 5 minutes until they came around to my way of thinking. I kept being persistent but polite and reiterating the facts of the case.
That prayer got me to sleep at night along with the Divine mercy chaplet.
Sorry to hear about your wife. What is the prognosis now?