In the founding of the fourth kingdom in nature, the human kingdom, the process is spoken of in the ancient books and archives in the library of the Hierarchy in the following terms which are (some of them) paraphrased and expanded in The Secret Doctrine:

"Seven men appeared, the prisoners of the Prajapatis and the prisoners also of the earthly Barhishads...Seven men of seven colors...Seven men, each on his own lot and related to the eighth. They spoke and knew each other. They saw and they desired that which then appeared. They sensed the first, the second and the third. They were themselves the fourth, but of the fifth they had as yet no knowledge for they were prisoners of the world and the fifth could not appear. The fires which were forty-nine in number proceeded then to do their work, and the prison bars grew firm as steel...But time persisted and the seven - each on his own lot - began to grow too large for the confining bars."

This parable will be apparent to esotericists. The clue to what I have to say comes later in the same ancient writing, and here I will roughly paraphrase or freely translate it for you.

"The seven - each on his own lot - acquired knowledge. The knowledge was the same, but the soil within [91] the lots differed. Nevertheless, the goal of reaching towards the heavens was the same as in the second (a reference to the vegetable kingdom and its symbolically skyward aspiration)...No further do they reach. Upon the lot of each, nine points of light appear, reflected in the heavens; they brought to seeding point that human seed which has within it that which is not of man. The light produced the germination and thus the new and better forms of life. And yet the form remains and yet its quality is changed. (I can find no better word than 'quality' wherewith to translate the ancient symbol). Some things are lost and disappear and rightly so. Some newer modes of life and what life builds appear, and thus the fifth is seen on earth like to the second and nurtured by the fourth. Within it are the one, the two, the three and then the fifth. And thus the glory of the One is seen."

One meaning is obvious if you study with care the implications and relate it to the kingdoms of nature. There are of course several meanings to these ancient writings.