To answer out of order, I don’t analyze them. I don’t think there’s really any reason to.
Sometimes it can be a window to the subconscious, but it’s mostly just random things.

It’s really hard to answer what it’s like. I dream very frequently and quite often vividly. What it’s like varies so much night by night. Lately, for maybe the past three weeks, I’ve been having one nightmare after the next after the next. For me, I tend to enjoy the scarier dreams that deal with “monster movie” plots. Zombies, clowns, ghosts, etc. Those are fun for me because they’re not real irl, so it’s easier to enjoy.

The problem I’m having right now is that these nightmares are too real and too targeted. “Nobody likes you” or bleeding out or being alone or getting cancer. Just all the horrible things my brain can do to make me wake up miserable, I guess.

When I’m stressed, I have a set of reoccurring themes that makes it easier to identify as a stress dream and therefore not be as effected by the events or emotions in the dream. Themes are: tsunamis, bears, brakes failing, or physical abuse.

One of the greatest problems I have after dreaming so vividly my whole life, is that I’m terrified that my brain will flip a switch when certain situations arise. For example, I’ve often dreamed about drowning. As in I’m in a pool or lake or ocean and for some reason am unable to get air. So I start panicking and doing anything I can. As I finally can’t take it anymore, I gasp for the air that isn’t there and… Huh. I can breathe water? It takes a bit, but inevitably the dream says look at you, you’ve always been able to breathe water, you just never tried.. So when it comes to the real world, I’m terrified that if there’s a situation where I need to hold my breath for a while underwater, my brain is going to just lean into the many lessons learned and tell me to just breathe and it’ll be fine, because I’ve always been able to breathe water, duh.

So. None of that probably answers your question. But it’s such an esoteric and personal and varied thing from person to person. Or from week to week within a single person.

If you do want to dream more, try to keep a little notebook on your nightstand and when you wake up with these dreams you rarely have, write them down. It clues your brain in to start remembering them more and then you will start to truly dream.