Our familiar symbol of the circle, triangle and cross within a square was the 
original logo of the early Science of Man. to explain the present addition of a phoenix to this symbol, let us quote portions from A Dictionary of Symbols, which tell us that: “A phoenix represents the overcoming of every partial death or change. In China, it is the emperor of birds and a sun-symbol.
In Christianity, the phoenix represents the triumph of life over death; resurrection and eternity. Christ himself exhibited the character of the phoenix: “I have the power to lay down my life and to take it up again.” As St. Paul states, “I have fought the good fight, I have finished the course, I have kept the faith, the crown of justice is restored to me.”
In alchemy, the regeneration of universal life and the successful completion of a process, which also combines the elements of fire and air.