I think religion and beliefs do in fact contain wisdom to them that was useful in someone's life. When I think of how Islam and Judaism treat the aftermath of someone's dying, I.E a time period to only grief is useful and considered wise when you remember that the concept of 5 stages of grief being relatively new.

However, there is an aspect of religion or how some people see religion that is like a Rorschach test in which they see what they want to see, or basically it is a reflection of themselves.