THE ROSE CROSS
The Cross with the seven roses is the symbol of the ethers, of the development of the human being in the various planetary stages of evolution, and the seven members of the human being.
When the human being 'fell' to earth he 'died' to the spirit, hence the black cross, but the pure spirit living in the blood, the roses will bring him back to life again.
In Temple of the Grail it is the Ancient Symbol for reincarnation depicted by a serpent or a dragon eating its own tail, or perhaps generating its tail from its mouth.
Originating in Atlantis this symbol was adopted by the Rosicrucians and the Alchemists and entered Renaissance magic and modern symbolism to mean the endless cycle of creation and destruction of life and death and immortality.
THE TREE OF LIFE
There are four earthly elements, Earth, Water, Air, and Fire or Warmth.
There are three higher ethers
Light, Sound and Life.
Before the fall of human souls to Earth the three higher ethers were removed from human consciousness and taken up to the Sun Sphere.
Knowledge of these higher ethers belonged only to initiates and in Atlantis they were vousafed to the Kings who misused the powers and became Brothers of Shadows. They are responsible for creating three lower ethers:
Electricity, Magnetism and the death forces hidden in the Atom.
Rosicrucians guard the knowledge of the higher ethers from corruption by evil minded humans who would use their powers to destroy the Earth.