The Psalms reveal to us how our brothers and sisters of old related to God with their emotional devotion, how their knowledge of God affected their decisions and feelings, but mostly ... their worship.
Psalms isn't a collection of coffee-house poetry...
it's an opus of truth
with resolute response
to the character of God
aimed at God-worship
forecasting Jesus Christ!
The New Testament writers, through the Holy Spirit, quote the Psalms far more than any other book. Jesus had the Psalms memorized and communicated His own message and mission using the pre-inspired and foretold Words from the Psalms.
Everyone I know wants to grow in prayer, but your growth will stunt unless you're a student of the Psalms.
Every emotion you've ever felt and many you have yet to feel pulse through the Psalms, but these emotions do not pulse ambiguously without God as do culturally-driven emotions. Emotion for God causes devotional fervency to love and live for Him.
Psalms are songs from the soul, emotion with devotion, so we might join in the heavenly chorus and Sing to the King!