Peter, James, and John personally experienced the transfiguration of Jesus on Mount Hermon. Jesus was metamorphosed right before their eyes. This means that Jesus changed form. It says that Jesus' face shown like the sun. This was not a light shinning upon Jesus from without, but His deity shining forth from within. Dr. Herschel Hobbs writes it was "the wick of His essential deity, which from His birth had been turned down low, was suddenly turned up to burn in the brightness of His true glory." This was no hallucination, as some have said. Paul used this same verb to describe the transformation that is to come about in the believer's life. "Do not be conformed to this age, but be transformed by the renewing of your minds, so that you may discern what is the good, pleasing, and perfect will of God" (Romans 12:2, HCSB). God changes you from the person you were into the person He wants you to be. However, this process takes place "by the renewing of your minds." Sadly, some believers still remain inside a cocoon because they will not allow God's Word to change the way they think. Make sure you regularly spend time with God in prayer. Make sure you regularly and systematically study God's Word. Make sure you also listen to the Holy Spirit as He seeks to teach you and show you how to apply God's truth to your life. As you do this, you will reflect the  transformation taking place within you that will also shine so brightly out from you.