According to Dr. Raman, there are three ganas or temperaments of nature: Deva (divine), Manushya (human), and Rakshasa (demon). Each of the nakshatras has one of these gana qualities. The Devas represent a spiritual and charitable nature with goodness of character. The Manushyas are more of the world and represent a mixture of positive and negative qualities. The Rakshasas suggest dominance, self-will, and the potential for violence.