Its the flaming sword that protects the entrance to the garden of eden. The Path on which one must journey in order to reach Eden and to have Communion and Conversation with their Holy Gaurdian Angel. We Journey from Malkoot to Keter in order to learn about mankind and its struggles, Its fall from grace and it possiblities of Returning to that grace. And once past the Abyss we learn to shead our false selves that we present to the world in favor of our true selves or subconsiousness. And upon doing so are aloud to live in Keter truley at the feet of the Greater Source.