Sri Aurobindo has asked the question whether the dualities of good and evil, right and wrong, light and darkness arise at the level of the material manifestation, or whether they exist at the levels of the vital and mental forces in their own native sphere, not connected to material nature. He addresses this question: “It was for a long time held by the human mind as a traditional knowledge that when we go beyond the material plane, these things are found to exist there also in worlds beyond us. There are in these planes of supraphysical experience powers and forms of vital mind and life that seem to be the prephysical foundation of the discordant, defective or perverse forms and powers of life-mind and life-force which we find in the terrestrial existence.”
Sri Aurobindo describes the apparent opposition, even to the extent of malevolence, which can be seen in an occult or inner exploration of these supraphysical realms of existence, and points out that “it is this feature of existence that we see figured in the tradition of the conflict between the Powers of Light and Darkness, Good and Evil, cosmic Harmony and cosmic Anarchy, a tradition universal in ancient myth and in religion and common to all systems of occult knowledge.”
At the level of the cosmic existence then, beyond just the physical manifestation, we see the existence and action of the dualities, and the resolution of this opposition and conflict must therefore be found at yet higher levels that bring about a resolution to the opposing tug they provide to one another.
Sri Aurobindo, The Life Divine, Book 2, Part I, Chapter 14, The Origin and Remedy of Falsehood, Error, Wrong and Evil