Expression: “Lying is a poison that dries the roots of trust.” Poison and roots are metaphors for relational harm.
Imaginative premise: Falsehood is pictured as something toxic to relationships.
Intended effect: The listener feels aversion and wishes to avoid lying.
Limit: Specific claims about effects on trust require their own ethical, social or empirical grounds.
The image illustrates qabḍ and tarhīb in poetic expression.