Evolution, according to the Gita, is a painfully slow return to our native state. First tamas must be transformed into rajas – apathy and insensitiveness into energetic, enthusiastic activity. But the energy of rajas is self-centered and dispersed; it must be harnessed to a higher ideal by the will. Then it becomes sattva, when all this passionate energy is channeled into selfless action. This state is marked by happiness, a calm mind, abundant vitality, and the concentration of genius. But even this is not the end. The goal of evolution is to return to unity: that is, to still the mind.
