Logical Analysis Of (Stylistically) Incongruent Wording Of A Sequence

Sequence Realised By Clause Complex:

Destroy it and man is destroyed.

Bi-Stratal Logical Analysis:

enhancement: condition (meaning) 

incongruently realised as 

extension: addition (wording),

entailing a metaphor of mood:

conditional proposition (meaning) 

incongruently realised as 

imperative (wording).