When the ‘Sattva prevails’ i.e., while the Sattva continues to be prevalent, if the embodied self meets with death, It reaches the pure worlds, i.e., regions conducive to the knowledge of the self. The purport is this: If Sattva preponderates in a person at the time of death, he will be reborn in the families of those who have the knowledge of the self, and thus be qualified to perform auspicious acts which are the means of attaining the true knowledge of the self.

Meeting with dissolution when Rajas is prevalent, one is born among those attached to work...

Meeting with death when Rajas is preponderant. one is reborn in the families of those who act for the sake of fruits for themselves. Being reborn in such families, he becomes qualified to perform auspicious acts which constitute the way for attaining heaven and the like.