As Pastor David continues his teaching through the Book of Psalms, he'll be exhorting you to keep an eternal perspective rather than always focusing on the temporal. When you abide in Jesus, and you wash yourself with the Word of God and renew your mind, it's much easier to focus on Heaven and eternal matters. When you live in sin, and neglect the fundamental pillars of your walk such as prayer, reading the Word, and going to Church, that's when your mind gets stuck on worldly matters.