Advice Poem by Jan Sand

'Gaze, ' DaVinci indicated
With one eyebrow elevated,
'On a wall - on every bit
Whereupon men have spit.
Investigate all small gradations:
Shading, color, intimations
Of a hand, an eye, a foot
Out of cracks, and dust and soot.
With your stare, assiduous,
On areas contiguous

Parts associate and link.
With some insight, in a blink,
A scene inserts into your ken
Outlining closely where and when
And how and why there coalesce
An image out of random mess.
Proving chaos does submit
To artilleries of spit'