“The evolution of humanity on our earth, globe D, offers in a strongly marked form the continual sevenfold diversity already often alluded to.
Seven races of men had already shown themselves in the third round, and in the fourth these fundamental divisions became very clear on globe C, where seven races, each with sub-races, evolved.
On globe D humanity begins with a First Race – usually called a Root-Race – at seven different points, “seven of them, each on his lot.”
These seven types side by side, not successive – make up the first root-race, and each again has its own seven sub-races. From the first root-race – jelly-like amorphous creatures – evolves the second root-race with forms of more definite consistency, and from it the third, ape-like creatures that become clumsy gigantic men.
In the middle of the evolution of this root-race, called the Lemurian, there come to earth – from another planetary chain, that of Venus, much farther advanced in its evolution – members of its highly evolved humanity, glorious Beings, often spoken of as Sons of the Fire, from Their radiant appearance, a lofty order among the Sons of Mind.
They take up Their abode on earth, as the Divine Teachers of the young humanity, some of them acting as channels for the third outpouring and projecting into animal man the spark of monadic life which forms the causal body.”
Annie Besant
The Mark Of God: Understanding Your "I AM Presence" 