The name of a miracle (pāṭihāriya). It enables all beings, from the Akaniṭṭhā world above to Avīci below, to see each other, because the whole universe is illuminated. It is also called Lokappasādaka or Lokappasādana (BuA.40; MT. 226 f. confines it to this world only).
It was performed by Sāriputta in honour of the Buddha, before the teaching of the Buddhavaṃsa (Bu.i.47), and again by the Arahants, led by Indagutta, to enable Dhammāsoka to see simultaneously the celebrations held at the dedication of his eighty-