Quote from Mythos:
It is difficult for me to understand how an omnipotent being would allow the suffering involved in some types of illness. I heard the prayers of the faithful around thier dying loved ones. They were beyond medical help, so they were apparently beyond God's help as well. If there is any place where God could work miracles, it would be in a hospital. The hospital is a place where I have witnessed a lot of supernatural cruelty. Faith seems to me to be a security blanket for adults.
Mythos
Like I say, it probably works the same way optimism works.