Calling a courageous man asad draws on the well-known association of the lion with bravery and strength. The connection explains why the animal's name can be extended to a person.
Original meaning: the predatory animal, lion.
Figurative referent: a brave man.
Relationship: the quality of courage associated with both.
Without this meaningful relation, majaz would collapse into arbitrary naming. Legal-linguistic interpretation requires a principled account of why a transferred sense is plausible.