sentences:  The "principle of shielding" asserts that visions often remain fundamentally unchanged by containing motivation to quash counter messages.The "principle of rededication" asserts that visions may be sustained through severe criticism of counter-rhetoric and strategic positive dramatizations to maintain the visions vitality.The "principle of reiteration" asserts that rhetorical visions may be sustained by restating the key fantasy themes and types in new manners that fit within the dramatic structure of the vision, along with framing new information within the old rhetorical forms to maintain explanatory power.