James 4-5, Proverbs 21

Is anyone among you in trouble? Let them pray. Is anyone happy? Let them sing songs of praise. Is anyone among you sick? Let them call the elders of the church to pray over them and anoint them with oil in the name of the Lord. And the prayer offered in faith will make the sick person well; the Lord will raise them up. If they have sinned, they will be forgiven. Therefore confess your sins to each other and pray for each other so that you may be healed. The prayer of a righteous person is powerful and effective. (James 5:13-16)

Prayer is an appropriate action on many occasions and in many circumstances. Experiencing trouble, being happy, becoming ill, and having sinned are instances that call for prayer, according to the Bible's book of James. In my experience prayer is suited to every emotion and event. If not, then what is the point of praying constantly (1 Thessalonians 5:17)?