Troilus and Cressida is not Shakespeare's best known play nor is it his most accessible. Yet it contains one speech which reveals much contemporary (and previous) thinking and belief. Ulysses describes in detail the chaos which would result from an essential hierarchy being destroyed, the widely held view of world order that I (following Pope, Lovejoy and Tillyard) have termed the Great Chain of Being in a previous post.
Strictly, the speech should be set in its dramatic and historical context with Ulysses having a political agendum concerning Achilles - and so any decoding should bear that in mind. He delivers the relevant part of this oration in Act I scene iii beginning at line 83: "Degree being vizarded" and continues until l. 134: "pale and bloodless emulation".
In the main section of the speech, he orates about the consequences of degree being overturned. This would be like the steps of a ladder being disassembled and chaos resulting. The sun, Sol, is properly like a king of the planets, but, if this position of power were lost and concord thereby disrupted, the earth would be subject to sea storms, earthquakes and all manner of horrors. The microcosm of human life is reflected reciprocally by the macrocosm of the heavens, which is why celestial portents were so feared, in case they heralded a disaster. (Note the derivation of that word). The imagery is of the discord caused when a string is untuned.
Ulysses then declaims about the loss of degree or hierarchy in human society which would cause total disorder and render "peaceful commerce" unworkable, mirrored by the waters overwhelming dry land. This leads to the crucial section where justice falls apart, sons murder fathers and any moral sense of right and wrong is no more. Man would become akin to an animal, a "universal wolf" because he would be driven by appetite, will and power with no restraints set by reason, the faculty which should separate humanity from beasts. The result would be uncontrollable competition. Overall, it is a terrifying picture - but one with a political aim.
I will leave you to read this speech for yourself and consider how the concept, although special to one situation, can shed light on other texts: King Lear's abdication would be one complex example.