The heart of Christianity is a myth which is also a fact. C. S. LewisC. S. Lewis argued that the great myths share a common theme-a heroic struggle known to all men. If we search the origin and the meaning of those epics, we find they point us to truth. Some of the most famous stories of all time were fish tales. Whether the plots included clown fish, killer whales, or deadly sharks, they appealed to something within us. Whether horrifying or cartoonish, comical or inspirational, historic or science-fiction, they hooked our souls.Still, the most incredible fish tale is the story of Jonah being swallowed by a large sea creature. Skeptics deny its plausibility. Others accept it on faith. Even Jesus had an opinion on it. He went so far as to stake His whole reputation on its occurrence. Jesus said that the sign of Jonah was the most important verification that any unbeliever could receive to prove His identity and work.And Christ proved it. Yet Jonah's saga was not the most important fish story ever told. Another has outlived its legend-the one chronicle that's greater than all the rest. It is as ancient as our world-even older than that. It is the greatest fish tale ever told. Even more, it's all true. And we are in it. We call this epic The Fish Tale of Ichthys-a factual story of mythic proportions.