2 Peter 1:16 For we did not follow cunningly devised fables when we made known to you the power and coming of our Lord Jesus Christ,
Peter wasnt relaying fairy tales or better yet, fabricated stories about the person and power of Christ. However, Jesus' coming will be in power. Peters life was radically changed by the LORD. He had lots of true experiences. We, as believers, have a plethora of real life experiences in the LORD.