A religion may provide multiple purposes. One purpose is explaining life. Some other purposes are providing psychological comfort, moral guidance, social bond, social control, cultural cohesion and motivation.

However, the ultimate purpose of regligion is providing guidance to end all forms of suffering the beings experience - if such means exists.

Then a few questions arise. What are all forms of suffering? What is that state where there is no suffering at all? Does it really exist? Is it really achievable? What means should be followed to achieve the same?