Series 2, Chapter 1 pg 269, Para 1: stating the same fact from the point of view of the originating Soul, he continues, “I am the birth of the whole world and so too its dissolution; there is nothing else supreme beyond Me.” Here then the supreme Soul, Purushottama, and the supreme Nature, Para Prakriti, are identified: they are put as two ways of looking at one and the same reality. For when Krishna declares, I am the birth of the world and its dissolution, it is evident that it is this Para Prakriti, supreme Nature, of his being which is both these things. The Spirit is the supreme Being in his infinite consciousness and the supreme Nature is the infinity of power or will of being of the Spirit, — it is his infinite consciousness in its inherent divine energy and its supernal divine action. The birth is the movement of evolution of this conscious Energy out of the Spirit, para prakrtir jivabhuta, its activity in the mutable universe; the dissolution is the withdrawing of that activity by involution of the Energy into the immutable existence and self-gathered power of the Spirit. That then is what is initially meant by the supreme Nature.

Series 2, Chapter 15 pg 442, Para 2: The idea of the Purushottama has been prepared, alluded to, adumbrated, assumed even from the beginning, but it is only now in the fifteenth chapter that it is expressly stated and the distinction illuminated by a name. And it is instructive to see how it is immediately approached and developed. To ascend into the divine nature, we have been told, one must first fix oneself in a perfect spiritual equality and rise above the lower nature of the three gunas. Thus transcending the lower Prakriti we fix ourselves in the impersonality, the imperturbable superiority to all action, the purity from all definition and limitation by quality which is one side of the manifested nature of the Purushottama, his manifestation as the eternity and unity of the self, the Akshara. But there is also an ineffable eternal multiplicity of the Purushottama, a highest truest truth behind the primal mystery of soul manifestation. The Infinite has an eternal power, an unbeginning and unending action of his divine Nature, and in that action the miracle of soul personality emerges from a play of apparently impersonal forces, prakrtir jivabhuta. This is possible because personality too is a character of the Divine and finds in the Infinite its highest spiritual truth and meaning. But the Person in the Infinite is not the egoistic, separative, oblivious personality of the lower Prakriti; it is something exalted, universal and transcendent, immortal and divine. That mystery of the supreme Person is the secret of love and devotion. The spiritual person, purusa, the eternal soul in us offers itself and all it has and is to the eternal Divine, the supreme Person and Godhead of whom it is a portion, amsa. The completeness of knowledge finds itself in this self-offering, this uplifting of our personal nature by love and adoration to the ineffable Master of our personality and its acts; the sacrifice of works receives by it its consummation and perfect sanction. It is then through these things that the soul of man fulfils itself most completely …