What does Esperanza mean?
The Spanish word for 'hope', from the Latin sperantia (from sperare 'to hope'). One of the three theological virtues and a Marian title, Nuestra Señora de la Esperanza (Our Lady of Hope).
What does Pilar mean?
A Marian devotional name from 'María del Pilar', Our Lady of the Pillar — commemorating the tradition that the Virgin appeared to Saint James standing on a pillar in Zaragoza. Pilar is simply the Spanish word 'pillar, column', from the Latin pila.