Interior of the temple
The tree-like columns reflect both a rigorous structural proposal and Gaudí’s
idea that the interior of the Temple should be like a forest, encouraging spirituality,
elevation of the soul and prayer, and suitable for holding communion. He
created them based on what is known as the double twist column, with a polygon
or star base that twists to the right and the left as it moves upwards, to become
a circle. This makes it more stable and gives it a more stylised, harmonious
appearance overall. The column is the intersection of two helicoidal twists.
From the capital, which has the shape of a knot in a tree, the columns branch out
and, in some cases several times, and sink into the vaults, creating the appearance of a forest.
The columns and their branches tie into the continuity of lines and surfaces, as in nature.