Waking visions and Post-Meditation visions

[Learner]

I haven't had any personal experiences, but from the knowledge I gained so far, my intuition is that the smokey form is likely a thought form originated from you. When you can "see" into higher dimensions/realms, what you see may be a mirroring effect: what seems to be coming at you is often something (e.g. thoughts) emanating from yourself. If the figure looked scary, it maybe a reflection of your fear. When you let go that fear, the entity left as well.  -- just my guess.