Human experience always contains both pain and joy. One of the reasons we can be confident that Christianity is actually true is it allows us to make sense of both aspects of the world. Of both beauty and pain.

You can't fake joy. Authentic joy is the kind that grows out of the soil of pain and doubt and fear, because that is the reality of the world.

If we, who are finite, contingent, created beings, have got God completely figured out, it makes it seem likely that we invented him...If I am ever completely satisfied with my understanding of who God is and how he operates in the world, I am in danger of ceasing to seek Him.

Its helpful to know the reasons for our faith...it helps us not be so vulnerable to doubt, and it helps us not be so vulnerable to false doctrine.