The interior of the Cristo de la Luz is surprising for its architectural richness, especially if you take into account the small scale of the building. The structure is organized in a square plan divided into nine compartments, created from four central columns that support arches and small vaults. These columns were not made expressly for the mosque: they are reused elements, possibly Visigoths or Roman, which shows how at this time old materials were integrated into new constructions.

Each of the nine compartments is covered by a distinct vault, reflecting great creativity on the part of the artisans. Some are formed by crisscrossed nerves reminiscent of the caliphal art of Cordoba; others present simpler solutions, but always with a high aesthetic value. The combination of these designs gives rise to a space full of rhythm and visual balance.

The horseshoe arches mark the passage between the different spaces. In the upper part, polylobed blind arches stand out, a purely decorative element widely used in Islamic architecture. Everything is built in brick, a humble but very expressive material, which allows you to play with shapes and textures in a subtle and elegant way.

Light enters dimly through small openings, which contributes to creating an atmosphere of recollection and spirituality. There is no figurative decoration, as is usual in Islamic art, but the geometric complexity and the arrangement of the space generate a strong symbolic and artistic charge.

In the 12th century, when the mosque was converted into a church, a semicircular apse was added to the east wall. This apse, in Romanesque-Mudejar style, is clearly distinguishable from the original Islamic body, but is integrated into the whole without breaking its harmony. Its inclusion responds to the need to adapt the building to Christian worship, orienting it liturgically towards Jerusalem.

This interior, with its fusion of Islamic, Visigothic and Christian elements, is one of the best examples of the crossroads of cultures that defines Toledo. Despite its small size, the Cristo de la Luz (Christ of Light) contains in its architecture a master class in history, art and coexistence.