We timed this right. Service had just ended, it wasn't thronged with tourists, visitors were respectful and quiet, and the organist was playing. It was transporting. The mosaic work is beautiful and the interior elegant. The view of Florence in the distance is expansive, a feast for a good camera. But the lasting impression was really how wonderful it felt to shuffle around the basilica and outside on the terrace. Take a moment to be still and breathe. It's a respite from the chaotic piazzas.