After the death of Christ this symbol emerges as a figure of profound meaning, for it was used by the first Christians as their profession of faith. You will see this symbol adorning many vehicles of the world.  The first followers of Christianity were persecuted because of their faith and they used the fish as a means of identification.  Often, you will see this symbol with the Greek lettering IXOYE inside the fish.  This is an acrostic form of the Greek word for fish.  In IXOYE -? each Greek letter begins a word in the phrase “Jesus Christ, Son of God, Saviour.