Happiness is very subjective. What makes one person happy does not necessarily make another person equally happy. Faith can help us deal with our emotions. All things that happened have their own reasons, as long as we trust in God. He wants us to be happy. People with depression should admit that they have a problem, take the initiative to find a friend to help, or write down their own distress to express their feelings. As a Christian, we should always keep an eye on unhappy friends, take them to social or church activities, and pray for them. Faith is the source of joy. It makes us feel that we are already living in heaven.