Lastly, this threefold poetry flows from three great sources - The Bible, Homer, Shakespeare.... The Bible before the Iliad, the Iliad before Shakespeare.
For a finite-size system to persist in time (to live), it must evolve in such a way that it provides easier access to the imposed currents that flow through it.
The wise person dines on something more subtle: He eats the understanding that the named was born from the unnamed, that all being flows from non-being, that the describable world emanates from an indescribable source.