The Incarnation of the Christ in Jesus of Nazareth
But preparation had to be made in the evolution of humanity to ensure the existence of a body fit to receive this Being. It was necessary for a Being such as had lived in Zarathustra to mature from incarnation to incarnation in order that in a body as pure as that of Jesus of Nazareth he could bring the faculties of the sentient body, of the sentient soul and of the mind-soul to the degree of perfection that would render this human being fit to receive into himself so sublime a Being. Such preparation had to be made. Before a sentient soul and a mind-soul could be adequately developed it was necessary that an Ego should first have undergone the many experiences and destinies of Zarathustra and then transform the faculties present in the Nathan Jesus. This would not have been possible at any earlier time, for the Nathan Jesus-child had to be worked upon not only by the Zarathustra-Ego but also by the lofty spiritual power we have characterized as the Nirmanakaya of Buddha. From the child's birth until his twelfth year this power worked chiefly from outside. But the Bodhisattva himself had had first to become Buddha before he was able to develop in himself the spiritual body, the Nirmanakaya, wherewith to work upon the Nathan Jesus during this period of his life. At the time of the incarnation in the course of which he was destined to become Buddha he had not yet acquired this power; the Buddha-life had first to be lived through.