Prior to an entity becoming consciously aware of the path of spiritual evolution, incarnation is automatic and catalyst is generally of a random nature. When the entity becomes aware of the mechanism for spiritual evolution (upon the activation of the green-ray energy center), the entity itself will, prior to incarnation, arrange and place those lessons and entities necessary for maximum growth and expression of polarity in the incarnative experience. Such programming may include: genetic predispositions, selection of parents and family, life circumstances, time period in which the incarnation will take place, personality characteristics, lessons of polarity, balance between love and wisdom, etc.