Here is a call to humility. Here is a call to repent of pride.
But it's not what you think. This is not a finger wag at sin. This is not a call to try harder. This is a call to see the greatness of God. And when we catch just a glimpse of God's greatness and power, we will be moved to humility. We will, when our thoughts about God are right, have right thoughts about ourselves.
So take to heart the message of Daniel 4. See God for who he is and bow down and worship!