Thousands of the Israelites had made it to Jerusalem to begin the building of the temple. The first thing they did was to build an altar to offer burnt sacrifices to the Lord. 
Revival begins with sacrifice. 
Revival comes when we make it a point to choose the things of God over the things of our world. We won’t be revived if we are making decisions of ourselves. It may mean losing fifteen minutes of sleep to read the Word. It could look like missing a favorite hobby to do the work of the Lord. It may be you raising your hand in praise when you’d rather stay in a place of anger. 
Revival comes with sacrifice but the results are always worth it. 
Scripture taken from: Ezra 3:1-2