Sri Aurobindo describes the universal forces that act to fulfil the sense and impetus of everything created in the universe. “Whatever is formulated in the universe has a Force or Forces that support it, seek to fulfil it or further it, find their foundation in its functioning, their account of success in its success and growth and domination, their self-fulfilment or their prolongation of being in its victory or survival.”
Some of these forces support and impel the powers of Light, while others support and impel the powers of Darkness. From this principle of the cosmic creation, we therefore see the basis for the concept which weaves its way through religious, spiritual and philosophical traditions around the world as the battle between forces of Light and forces of Darkness, forces of Good and forces of Evil. This can take the form of God and the Angels combatting against Satan and the fallen angels; or between Indra and the Vedic Gods combatting the sons of Darkness and Division, and leads to tenets such as the “Zoroastrian Double Principle”.
In each case, these traditions imply or directly state that there are invisible supraphysical forces that have their origin on another unseen plane and which impact and act upon life on the material plane. We see in these traditions a world moved and influenced, or controlled, by these unseen forces, in many cases having their own form of embodiment and consciousness as formed “personalities”, who seek their fulfilment here through controlling the material world and its actions. Sri Aurobindo points out that “Modern thought is aware of no invisible forces other than those revealed or constructed by Science; it does not believe that Nature is capable of creating any other beings than those around us in the physical world, men, beasts, birds, reptiles, fishes, insects, germs and animalculae. But if there are invisible cosmic forces physical in their nature that act upon the body of inanimate objects, there is no valid reason why there should not be invisible cosmic forces mental and vital in their nature that act upon his mind and his life-force.”
We see here the basis for the occult traditions of the world which has been verified throughout the ages through inner experience,–namely, that there exist forces, not only at the physical level, but at the vital and mental level, which act upon our world even if unseen or unrecognized by us.
Sri Aurobindo, The Life Divine, Book 2, Part I, Chapter 14, The Origin and Remedy of Falsehood, Error, Wrong and Evil