It could be challenging in certain cases to tell apart between metaphor and simile as literary products. Equally are figures of speech made to make 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://metaforas40739.gigswiki.com/5429255/a_secret_weapon_for_metaforas