So from that Infinite source of Light, a fragment of a lighted camphor is taken out and used as nIrAjanaM to Her, through this work. In other words the whole work shows only a fragment of Her Infiniteness. And that is why the third nIrAjanaM (shloka 100) corresponds to Creation. Thus Soundaryalahari has three wonderful nIrAjanaMs built into it.
Let us now come back to shloka #22, where the first nIrAjanaM is taking place. The nIrAjanaM here is nothing but the dazzle of the crowns in the heads of BrahmA, VishNu and Indra.