Psalm 84:10 

For a day in Your courts is better than a thousand (anywhere else); I would rather stand (as a doorkeeper) at the threshold of the house of my God.  Than to live (at ease) in the tents of wickedness.  

Sometimes we need a reminder of how short our lives are here on earth compared to eternity.  That one day, the believer will see God and His courts in heaven.  The vision is a way to keep our present life in perspective to what is long-term.  Just because a wicked person seems to have a life of ease doesn’t mean that is the complete picture.