Thinking back on grammar, the direct object is the person or thing that receives the action of a verb. In English, the direct object is usually preceded by an “a”. In the Spanish language, that is referred to as the “personal a”. It is also common in Spanish to use the personal a when the direct object is a pet. The following are a few examples of when and how to use the personal a.
Llamo a mis padres una vez cada semana.
Voy a visitar a mi amiga en el hospital.
¿A quién llamaron ustedes ayer?
Estoy buscando a mi gato, Coco.