The great prime knowledge is sympathetic in nature.

I am I, in vital centrality.
I am I, the vital center of all things.

I am I, the clew to the whole.
All is one with me.

It is the one identity.
But at the lumbar ganglion, which is the center of separate identity, the knowledge is of a different mode, though the term is the same.

At the lumbar ganglion I know that I am I, in distinction from a whole universe, which is not as I am.