Before I start, I have read until now only the two first parts of RoW. If anything is revealed later, please don't spoil this to me. You can tell "oh, you'll get this later", but please let me enjoy the rest of the book :)

At the beginning of WoK, we get to know stormlight - the light of Stormfather that ran all this world, the light of Honor. Later, the fused reveal their voidlight, Odium's light, and used it. For a long time, I thought that was the only two sources of light - one light for each storm.

And then RoW released, the Sibling revealed it's own light, Gavilar collected a fourth type of light, and Dalinar started producing stormlight out of storms.

So I got those ideas (that I want to share here, because I have nowhere else to tell this):

• Lift's light. Lift has the special ability to create light for her abilites by eating. And she had a contract with Cultivation - the god of growing, of plants, of whatever that became food. Lift doesn't create stormlight by eating, but some type of Cultivationlight - that do works for her radiant abilities, but instead of creating in honor's storm, this light is gathered in food and plants, and only Lift - who had a contract with Cultivation that gave her this ability - can use this light.

• Bondsmiths. Dalinar had a contract with the Stormfather, and he creates stormlight. We don't know how the Sibling's light is produced - and my guess? By his bondsmith. Bondsmith's sprens are light producing sprens, and the bondsmith is one way to create this light. One for Stormfather, one for the Sibling to use the tower's wierd fabriels, and one for the nightmother - cultivation light, which can be very interesting.

• Gavilar's light. Because Gavilar gathered some sort of voidlike light, but new. The light of one of the unmade? The light of Odium and cultivation, or Odium and Honor (as this is a thing of the son's of honor, who wanted to bring Odium back?)

Or maybe this is the light of something else? The light of Ruin or another shard? An artificial light, created for some proposes? Maybe something to do with the Restares that waits in the lasting integrity - maybe he is another Spren with its own wierd light?

And for conclusion, we got a lot of different light types on Roshar. Three lights for the Bondsmiths, at least one more of Odium, maybe the light of Cultivation Lift is using is different than the one of the nightmother, the wierd light of Gavilar, and all the rest of the light that we just need to find...

And can we merge those different lights into a one pure light? Like real light, that is made of different colors?

And who is gonna connect with the Sibling and create our Sibling light? (I guess Navani, but all options are clear)

That is a little confusing section about light and bondsmiths. What do you think of Roshar's light?