Swimming-Upriver!

The Christian fish symbol( <>< ) or 'Jesus Fish' is conventionally shown swimming from right to left. The FISH SYMBOL? why? and moreover, A SECRET SYMBOL? What is the Meaning of the Fish? What hidden lessons can be grasped from such a simple creature? To many people, the fish represents The best meal! and HAPPINESS!... Swimming-Upriver can show that a person has overcome various obstacles and not only does he keep standing, but he has come out victorious!