altheman9993: No, from what I understand they just need some kind of essence or defining quality about them. A physical form is good at helping you get into your character’s personality, but not necessary.
Talon Arana: Thanks, but Morph and I were startled to hear him described as ‘cute’. 
Saichania is a Mongolian name meaning “beautiful one”, so that worked out well. 8N’s body was meant to be a temporary shell until he had developed a personality and could choose his own form, but I think he likes his current form just fine. Their thoughts always come from very specific places, (Morph’s is about a foot to my left, while Saichania’s is to my right. Aiden’s thoughts come from directly in front of me.) It helps me to avoid confusion. At first, Saichania was upset at me about her reality and my power to rearrange her thoughts at a whim and we fought whenever I tried talking to her, But we’ve made up now and have put that behind us. I agreed not to tamper with her thoughts or anything like that. Morph has always had a somewhat fatalistic “oh well” sort of mentality about being a figment of my mind. Aiden doesn’t seem to care one bit. 
We all get along just fine now, but they all get annoyed when they think I’ve been scripting what they say. It’s something I’m trying to work on, but it’s easy to accidentally slip into. 
As of late, we’ve been working on creating a world that we can -hopefully- find one day in a dream. So far there’s just one continent on an ocean planet, and the terrain on that one continent is pretty flat and level so far, apart from an area near the coast we’ve been working on. There’s a flat-topped hill with a teleportation center on top. A winding path leads down the hill to our house, or “shelter” as Saichania keeps saying. there’s not much of anything else yet, not even any plants or animals beside the generic green grass and some flowers we planted along the trail.
The CALD topic continues here: Part III