Sri Aurobindo has shown us that the idea of creating human unity out of physical, vital or mental processes or motives is flawed, and that these methods eventually break down or, if they seem to succeed, contain the seeds of their own eventual dissolution. This is not to say that such attempts should be abandoned; and eventually unity on these levels must also occur; rather, it is to emphasize the need for a deep inner realisation and truth to awaken in humanity to create the necessary psychological oneness that is the real unifying factor. This inner truth will then be able to shape its body in the outer forms of unity that it can develop. As long as we think of ourselves as separate and apart from one another, and we look at our various groupings as separate and independent from one another, or even, in conflict with one another, there is no real hope of stable, and lasting, unity. The need for such unity is becoming more and more clear as humanity faces concerns and problems of global proportions, so attempts will be made through whatever means or motives humanity can muster.
Sri Aurobindo observes: “Could such a realisation develop rapidly in mankind, we might then solve the problem of unification in a deeper and truer way from the inner truth to the outer forms. Until then, the attempt to bring it about by mechanical means must proceed. But the higher hope of humanity lies in the growing number of men who will realise this truth and seek to develop it in themselves, so that when the mind of man is ready to escape from its mechanical bent, — perhaps when it finds that its mechanical solutions are all temporary and disappointing, — the truth of the Spirit may step in and lead humanity to the path of its highest possible happiness and perfection.”
Sri Aurobindo, The Ideal of Human Unity, Part Two, Chapter 35, Summary and Conclusion, pg. 308