It might be hard in some occasions to tell apart concerning metaphor and simile as literary units. Each are figures of speech built to develop comparisons. “Agua, fuente de vida”: El término actual es agua, y justo después de la coma aparece el concepto metafórico en el que se menciona https://metaforas63951.blogkoo.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-metaforas-52046792