From the perfect oneing of the two parent nuclei in the egg-cell results a recoil or new assertion.

That which was perfect _one_ now divides again, and in the recoil becomes again two.
This second nucleus, the nucleus born of recoil, is the nuclear origin of all the great nuclei of the voluntary system, which are the nuclei of assertive individualism.

And it remains central in the adult human body as it was in the egg-cell.

In the adult human body the first nucleus of independence, first-born from the great original nucleus of our conception, lies always established in the lumbar ganglion.

Here we have our positive center of independence, in a multifarious universe.
At the solar plexus, the dynamic knowledge is this, that _I am I._ The solar plexus is the center of all the sympathetic system.