I am Ra. Your query is most distorted for it assumes that creations are alike. Each mind/body/spirit complex has its own patterns of activation and its own rhythms of awakening. The important thing for harvest is the harmonious balance between the various energy centers of the mind/body/spirit complex. This is to be noted as of relative import. We grasp the thrust of your query and will make a most general answer stressing the unimportance of such arbitrary generalizations.
The entity, before incarnation, dwells in the appropriate, shall we say, place in time/space. The true color type of this location will be dependent upon the entity’s needs. Those entities, for instance which, being Wanderers, have the green, blue, or indigo true-color core of mind/body/spirit complex will have rested therein.
Entrance into incarnation requires the investment or activation of the indigo-ray or etheric body for this is the form maker. The young or small physical mind/body/spirit complex has the seven energy centers potentiated before the birthing process. There are also analogs in time/space of these energy centers corresponding to the seven energy centers in each of the seven true-color densities. Thus in the microcosm exists all the experience that is prepared. It is as though the infant contains the universe.
The patterns of activation of an entity of high seniority will undoubtedly move with some rapidity to the green-ray level which is the springboard to primary blue. There is always some difficulty in penetrating blue primary energy for it requires that which your people have in great paucity; that is, honesty. Blue ray is the ray of free communication with self and with other-self.