Romans 8:6

Now the mind of the flesh is death (both now and forever because it pursues sin), but the mind of the Spirit is life and peace (the spiritual well-being that comes from walking with God-both now and forever).

It all comes down to choices for our mindset and spiritual peace. We will never be satisfied if we remain entrenched in our self-focused sinful nature. When we choose the Word of God and a spirit focused on God over the selfish desires of the flesh, we will enter into peace. It is a daily choice and a constant renewal of the mind that keeps us planted firmly on the Word.