Ring Lens
Some surahs are built like a ring. The opening is answered by the close, each part by its mirror, and the heart of the surah sits at the centre.
How to read a ring
Scholars of Quranic structure divide a surah into parts and notice that the parts can mirror each other. Written as letters, the pattern runs A, B, C, then the centre, then C′, B′, A′.
Part A and part A′ share themes or wording, and so do B and B′. The centre has no partner, and is often where the surah makes its key point.
Ring Lens draws this as arcs over the surah. A longer part gets more room, each arc joins a part to its mirror, and the centre glows.
Surahs with a published outline
Only surahs with an outline that gives a verse range for every part are included, so each one is a reading you can check.