The inside is entirely decorated with architectural designs inspired by classical Graeco-Latin styles, typical of neo-Renaissance ornamentation. Its walls are divided into three areas as they were floors. The first two floors are decorated with semicircular arches supported by Corinthian-inspired columns –in the first floor– and by plain pilasters –in the second floor. The second floor also includes a balustrade imitating balconies with wooden doors, which is topped with a frieze decorated by vegetal elements converging in shields with a central cross. This decoration is downright calculated in order to maintain a completely organized rhythm, generating a clear and clean view.

Flanking the wall, there are niches decorated with architectural elements that follow the building style line, with several devotional altars containing figures representing saints and important religious people, made out of polychrome wood and plaster. There are representations of the Virgin of Carmel, Saint Teresa of the Andes, Saint Francis, the Sacred Heart of Jesus and Christ on the Cross.

Ceiling is leveled and follows the lintel structure. It is divided into panels, which are profusely decorated and molded; such panels represent Christian symbolic elements. Different-sized panels are framed with different decorations such as garlands and vegetal figures emphasizing the central scene.

Nave ends up in an apse where the presbytery and the altar are located, both of them made out of Carrara marble in a big-proportioned baldachin containing the figure of Our Lady of Divine Providence.