Practicing gratitude is an important component of good mental health. There's various ways to do this.
One can simply make a tally of everything they encounter during the day that they are grateful for. Another route is, at the end of each day, write down 5 things that one is most grateful for. This exercise can also be done weekly, and when recalling what one is grateful for trying to think how they're life would be different if that was not there for them. This can help the appreciation to be even deeper.
Studies show that practicing gratitude helps decrease the symptoms of anxiety and depression.
In Christianity, practicing gratitude is an important component to not only praise God, but to be sure we are doing God's will. And to practice gratitude for not just the good things, but in everything:
1 Thessalonians 5:18 "in everything give thanks; for this is the will of God in Christ Jesus for you."