In the analysis of استعارة بالكناية, the thing compared (مشبّه) is presented as resembling another, while the implied comparand (مشبّه به) supplies a characteristic or consequence associated with it. The comparand may remain unspoken and be inferred from its attributes.
In “spring made the grass grow,” the word “spring” remains, while “causing growth” creates the imaginative picture of spring as a true agent of growth.
Understanding an implicit simile is one thing; treating that simile as a complete theory of the predication is another. The latter requires explaining how the attributed action, the comparison and the indication fit together.