Regular prayer to God increases our feeling of peace and strengthens our friendship with him. According to Psalm 15: 3, 5, what does Jehovah require of us if we are to be his friends?
وَٱلصَّلَاةُ بِٱنْتِظَامٍ إِلَى ٱللهِ تَزِيدُ شُعُورَنَا بِٱلسَّلَامِ وَتُقَوِّي أَوَاصِرَ صَدَاقَتِنَا مَعَهُ .‏