|The third excerpt represents the element of Water. It speaks of pure spiritual influences and feelings of love, and is drawn from The Cavalry General by Xenophon:
 Decadarchs, lit. commanders of ten, a "file" consisting normally
(or ideally) of ten men. Cf. "Cyrop. II. ii. 30; VIII. i. 14. It
will be borne in mind that a body of cavalry would, as a rule, be
drawn up in battle line at least four deep (see "Hell." III. iv.
13), and frequently much deeper. (The Persian cavalry in the
engagement just referred to were twelve deep.)
 See "Cyrop." III. iii. 41, 57; VI. iii. 24, 27; VII. i. 15; "Pol.
Lac." xi. 5. These front-rank men would seem to correspond to our
"troop guides," and the rear-rank men to our serre-files to some
 Cf. Aelian Tact. 26, ap. Courier.
|The fourth excerpt represents the element of Earth. It speaks of physical influences and the impact of the unseen on the visible world, and is drawn from The Art of War by Sun Tzu:
[Ch`en Hao says "quarter your soldiers on the land, and let
them sow and plant it." It is by acting on this principle, and
harvesting the lands they invaded, that the Chinese have
succeeded in carrying out some of their most memorable and
triumphant expeditions, such as that of Pan Ch`ao who penetrated
to the Caspian, and in more recent years, those of Fu-k`ang-an
and Tso Tsung-t`ang.]
21. Ponder and deliberate before you make a move.
[Chang Yu quotes Wei Liao Tzu as saying that we must not
break camp until we have gained the resisting power of the enemy
and the cleverness of the opposing general. Cf. the "seven
The Art of War