Under favourable circumstances this development may proceed so far as to raise the animal altogether out of touch with the group to which he belongs, so that his fragment of a group-soul becomes capable of responding to the outpouring which comes from the First Aspect of the Deity.
For this final outpouring is not like the others, a mighty outrush affecting thousands or millions simultaneously; it comes to each one individually as that one is ready to receive it.

This outpouring has already descended as far as the intuitional world; but it comes no farther than that until this upward leap is made by the soul of the animal from below; but when that happens this Third Outpouring leaps down to meet it, and in the higher mental world is formed an ego, a permanent individuality--permanent, that is, until, far later in his evolution, the man transcends it and reaches back to the divine unity from which he came.
To make this ego, the fragment of the group-soul (which has hitherto played the part always of ensouling force) becomes in its turn a vehicle, and is itself ensouled by that divine Spark which has fallen into it from on high.
That Spark may be said to have been hovering in the monadic world over the group-soul through the whole of its previous evolution, unable to effect a junction with it until its corresponding fragment in the group-soul had developed sufficiently to permit it.

It is this breaking away from the rest of the group-soul and developing a separate ego which marks the distinction between the highest animal and the lowest man..