He who has an ear, let him hear what the Spirit says to the churches. To him who overcomes I will give to eat of the Tree of Life, which is in the midst of the paradise of God. (Revelation 2:7 MKJV)
Jesus has given a report card to the Ephesians. He pointed out the things that they were doing right. He pointed out the areas where they needed to improve. If you follow His suggestions, you will overcome the areas that need improving. There is a reward. You will eat from the Tree of Life which is in heaven. Spending time with Jesus now will prepare you for spending time with Him throughout eternity.