Here is the previous post about this topic. You may be lost if you haven’t read this before. Navigation of Aset/Isis.
I can’t help shake the feeling that this festival in its Kemetic version was very much like the Aset Luminous celebration. They all have to do with Aset searching for Wesir (or going to His Temple), torches for guiding the way, boats traveling on water and giving offerings to the Goddess. Navigation Festivals sometimes had oracles.
I’m not sure how much these connect. Aset Luminous or Festival of Lights of Aset may have been more than once or year or commemorated at more than one festival.
I will have to do more research.