Matthew 6:6

But when you pray, go into your room, close the door and pray to your Father, who is unseen. Then your Father, who sees what is done in secret, will reward you. (Matthew 6:6 NIV)

This action is so important for us to be healthy.  Each one of us need to take this time everyday, close our door and talk to God.  This will sustain us.  Much like eating food for our physical bodies, our minds and hearts need time to be healed and rejuvenate.  Jesus took time to do this, so should we.