Physis, Nature, whose deepest secrets were long held by the initiates to the Eleusinian Mysteries, was revealed to far-wandering Odysseus by none other than grey-eyed Athena, herself sprung fully-formed from Nous, the secret mind of Zeus.

She led him to a hidden grove on some ancient Sicilian shore where grew a common plant which could not be plucked from Earth without destroying its roots.

This invisible basis, which mirrors by some unknown algorithm the symmetry of the stem, cannot be seen by the external eye, but only partially and misleadingly reconstructed by the rival arts of Theory and Poetry.

So, too, the Nature of Man, whose hidden inwardness is still fought over by the rival psychologies of the Physicians and the Artists.