A Mental EntertainmentI did not know there is a legitimate name for this type of daydreaming. I have always thought it is only childish me who does this!
As I remember, it started when my brother gave me my first manga/comic book. The storyline was so mesmerising it captured my thoughts all days and nights. Unconsciously I began to 'act' in my dream: Took an identity, set up a role and blended into the story. I got huge fun out of it and could not stop. When the thought popped up, it was there for me to join the play. I could daydream regardless of when and where I was; I simply could not sleep straight because of this: only when my mind went exhausted faded the fantasy.
At older age I created complex plots in my mind switching between roles representing my mood. A mix of action/comedy/romance from randomly normal living scenes to intensely fantasised act. My family called me a heavy dreamer, my mom often joked 'Again my daughter disappeared to the other world in the middle of the dinner' cos I could just routinely eat while my eyes went off-focus as my mind deepened itself in its own realm. Of course they never knew where my imagination truly lied upon although they got amused by my sudden laughter or subsequently weird facial ex
However, although it is called a disorder, I find this type of mental entertainment helps e.g during depression: I can turn on the music and immediately escape to my perfect kingdom. Plus I can obtain an enormous stock of creativity thanks to my off-track daydreams which helps me in various artistic tasks. Undeniably this habit also distracts me a lot and I know I'm wasting my time but I could not depart myself from it. It's too wonderful and addictive to get out.
And I thought I was being a kid, not knowing this is actually a disorder until now. A weird feeling arises.