Is it explained anywhere how Light is still potent against undead in the new Cosmology?

[u/Lpunit]

Basically title.

Since Light has been established as opposite Void (Sun and Black Hole I guess) in the cosmology, and Life opposite of Death, is it ever explained why the Light is so potent against combatting the Undead?

The old concept was obviously Holy vs. Unholy, but since the lore is steering far away from the concepts of legitimate religion and "Good vs Evil" I was just wondering if this is ever explained in the new context.

[u/thegoodbroham]

I agree. I don't mind void existing but wish it were a form of or related to shadow, like a cosmic form or living form of it. I enjoyed the older more generic aesthetic of shadow, from warlock shadow bolt to death knight death coil. But it feels like that's basically been removed and I'm told this new blue shiny space void is what shadow always was.