What does Judaism or Jewish mysticism/Kabbalah say about dreams?

I’ll preface this by saying that I am not Jewish, although I had a grandparent who was Jewish—who I never met. But since this dream contained Jewish imagery I thought I’d post it here.

I had a dream the other night in which these two young girls, dressed in black, were wearing tefillin and praying from a siddur. The girls, or one girl, had the leather arm strap/banned of the tefillin wrapped really tightly around her forearm so that it was bunched up to her elbow with not gaps —you could not see her skin in between the strap, if that makes sense. (I’m not sure if it’s offensive for it to be worn wrong, this is just what I saw in my dream).

I didn’t know the girls in the dream, they weren’t me or anyone I know. But they were standing in a small, dark room with a single light source.

I like to think dreams have a deeper meaning. I’ve had other weird dreams over the years that just feel different to others. Like deceased people visiting me, or I used to dream about my family cat, who ran away when I was little, for close to a decade after she left. I once had a dream where there was a magpie in my house and I couldn’t get rid of it hehe. Sometimes I have incredibly vivid dreams in which I feel every texture and temperature and emotion. I had a really vivid and intense dream about a month ago in which I was at a party and had to call an ambulance for a drummer—there’s more to that one but it’s a longer dream than I have room for here.

I’m aware they could just be dreams and chemicals, but I like keeping an open mind with stuff like this. Especially when some dreams just feel more important to me than others. Some people might laugh but I’m so fascinated by them.