Consider it pure joy, my brothers and sisters, whenever you face trials of many kinds, because you know that the testing of your faith produces perseverance.
John says that perfect love casts out fear. Jesus' love is perfect and it is surrounding you.
Practical atheists are people who are Christian in name, but act as if they don't know God. They may act kind, and be nice in public, but deep down they only do it for themselves and other humans. So, what does a Christian life look like? A Christian life is one that is changed because God is there.