Is there a separate novel called Chalom? If yes. this is fine, but if this anthology is a stand alone, this won’t make sense.
I think some of the others are under the impression you are writing an anthology that explores the dreams of characters from a different pre-existing story.
So assuming it’s a stand alone anthology, and not related to some other piece of work, I recommend this rewrite:
Chalom: Collection of Dreams is an anthology novel of dream sequences, each exploring themes of sadness, hope, love, healing and death. This novel will have good and bad dreams and all characters will be different in each scene-whether they be sleeping at night or daydreaming.
You don’t need to specify that they’re unconnected stories or that it’s plotless, as that’s already implied from it being an anthology about different character’s dreams. I did drop out the “slice of life” bit just for simplifying, but you could absolutely work it back in.
Just my thoughts! Good luck!