Mental health is a massive problem in society. It's costing us millions in tax money to care for people, disrupts families, is at the root of some crime, and at the root of some addictions like drugs and gambling. Religion, on the other hand, is a different field altogether. Yes they do cross over. When someone suffers from delusions of grandeur (thinking they are God, in particular) it has to be heartbreaking. When somebody gets addicted to religion to the point of an obsession, it's equally as damaging. Still, religion can ease a person's mind, clam them down, give them solace in times of grief, and more.