The whole order of nature evinces a progressive march towards a higher life. There is design in the action of the seemingly blindest forces. The whole process of evolution with its endless adaptations is a proof of this. The immutable laws that weed out the weak and feeble species, to make room for the strong, and which ensure the “survival of the fittest,” though so cruel in their immediate action—all are working toward the grand end. The very fact that adaptations do occur, that the fittest do survive in the struggle for existence, shows that what is called “unconscious Nature” is in reality an aggregate of forces manipulated by semi-intelligent beings (Elementals) guided by High Planetary Spirits, (Dhyan Chohans), whose collective aggregate forms the manifested verbum of the unmanifested lógos, and constitutes at one and the same time the mind of the Universe and its immutable law.
H.P. Blavatsky The Secret Doctrine Book 1 pages 277-278