PRs
Persistent Realms
A persistent realm is a recurring (persistent) place or concept (realm) that exists in your dreams, and you visit it multiple times. It is comparable to a fictional universe like the Marvel Cinematic Universe or the Star Wars universe, or to a TV or movie series where you have multiple episodes.
Drafting a PR
You may want to flesh out an idea for a more fully developed persistent realm that is comparable to the MCU or the Star Wars universe. If you do, it might be a good idea to draft your ideas for it, and any key elements you want to have, such as:
Magic systems
Any important characters, such as an antagonist
Any in-universe names for your world, especially if it's on another planet
Your identity in the PR
Weapons
Note: you can and should leave most of the details out. Plot, for example, is best done if it just happens, and isn't planned in advance. It's more fun that way.
You can absolutely skip this part entirely, and maybe you even should, especially if you want to make a PR out of a past dream.
Getting into your PR
Once you've decided upon a realm you want to visit, there are a few ways you can get there:
Dream incubation. This is the choice to go with when you don't need lucidity, but you do still want the maximum time in the PR that you can get. Without lucidity though, you may be more likely to be removed from the PR (depending on what you define your PR to entail).
Switching to the PR while lucid. You can use WILD to still maximize your time. Here are some transition ideas:
Straight-up teleportation
Beam me up, Scotty!
Opening a portal
Going through a door
Black hole sun (won't you come?)
Alien abduction
Morphing your environment to match the PR
That weird Force trick that Snoke used on Rey and Ben Solo
A maintenance realm
PR Tips
You can make a PR as a continuation of a dream.
You can stay in your PR across wakings by using DEILD.
You can change the rules as much as you want, including restricting yourself.
You decide what counts and doesn't count for your PR, and to what degree.
Further reading
Also try: Wake Back-To-Bed