The Octave of Biological Intelligence represents the development of intelligence within the context of life on earth. It helps to have a basic understanding of biology in order to see how this works, but it's not absolutely necessary.
* It should be noted that each note contains a whole octave within itself, leading to divisions of sophistication, intelligence, and consciousness within each class of creatures itself, so that the note "Sol," for example, representing the introduction of emotional intelligence in chordate animals, displays a range of emotive capacity ranging from very nearly none (most fish, for example) up through two-centered animals forming very complex social communities, such as birds and elephants. In another example, bees and ants represent the highest level of development for the octave under the note "Fa."
Basically, with a right understanding of the enneagram, this type of analysis can be applied to multiple systems in order to understand how complexity develops and, through the naturally emergent properties of matter, expresses itself as consciousness. The octave we're examining here happens, of course, to form a particular note in the development of an octave above us in the cosmic scale. It is lawful that information about the octave we are in contains much information about the octave above us, and even the nature of the note we occupy. Hence Gurdjieff's third obligolian striving.
There are further implications here regarding the incorrect location of the second shock, and its placement between Sol (moving + emotional creatures) and La (moving + emotional + thing creatures) which deserve further examination.
I respectfully hope you will take good care. http://www.doremishock.com/enneagrams/biologicalenneagram.htm