أحدهما: لوجود الاتصال بين العلة والحكم، والثاني: لوجود الاتصال بين السبب المحض والحكم
The first path depends on the connection between legal cause and ruling; the second on the connection between a mere means and the ruling.
Legal cause and effect: a cause and the legal result associated with it may provide a reciprocal ground for figurative language.
Mere means and effect: an antecedent condition may be related to a legal effect without possessing the same two-way semantic connection.
This distinction explains why some pairs of legal expressions may stand for each other, whereas other pairs permit metaphorical transfer in only one direction.