The Siddhas and the Saddhyas were divided into two classes for their conduct and youth. The deities were formerly divided into two classes, viz., the Ribhus and the Maruts.
शीलयौवनतस्त्वन्यस्तथान्यः सिद्धसाध्ययोः। ऋभवो मरुतश्चैव देवानां चोदितो गणः॥