Autistics and ADHDers often seem to have certain areas that they really enjoy and that light them up. Sometimes these things can be seen as obsessions from others but they are really ways to help the brain stay stimulated.
Some added resources related to the chapter
From Dr. Megan Neff
Here are some online tests to look at if you are wondering if you might be Autistic. They don't give an official diagnosis but they might help you on your journey