Jams' Mindscape?

[Jams Bolero]

A main part of how Jams' story goes revolves around him unlocking his memories.  This is important to other characters as well, but I plan to tie it in a bit more heavily here.  In order to make my writing a bit more interesting, would it be alright to create a "mindscape" within Jams' imagination?  It would be sort of a small world that only his mind can access, and mostly just serves to provide some creative imagery for my own personal use.  Beyond being a "visual" representation, it's the same basic idea as him reflecting over his thoughts.  It would not interfere with any other verses in the slightest, although what it may do to Jams mentally is different.