Hiperboloide

According to Gaudí's own symbology, the hyperboloid represents light, and that is why he uses it in all those points where it passes and diffuses from the outside to the inside. In the windows you can see circular or elliptical hyperboloids. Hyperboloids can also be seen in the column capitals.

Holed hyperboloids of revolution are used to let light pass from the attic to the nave, built either with Catalan tile and green and gold mosaic, or with white concrete.

In the turns there are small holes where artificial lights will be installed so that the night vision of that roof is like the starry turn of the night sky. Hence, these holes are also made using the figure of the hyperboloid, in this case elliptical.