The image that we have of Jesus is one which affects the way we act as Christians and the way we take the gospel to the world. That image has sometimes beenreflected badly because we do not have a fully rounded image of the Jesus we love and worship. Indeed some modern concepts of Jesus in the Church would be difficult to worship.
In revelation Chapter 1 Jesus appears in a vision given to the apostle John - it is an awesome, majestic vision. The Bible, perhaps intentionally, doesn't give us much information about what Jesus looked like in human form. Here, God gives us an image that transcends the incarnation - an image of Jesus that we can really focus on.
In C.S. Lewis' 'The Lion, the Witch and the Wardrobe', Lucy asks whether Aslan is safe - "course he isn't safe. But he's good...". That exchange gives us some of the flavour of this vision of Jesus. As we consider his character we are helped to understand him as 'Lord'.