i remember when i was little, i was looking at our red drawer and kept repeating kuya (which means brother in tagalog) then i repeated it so many times that i couldn't remember what it means anymore. at that moment i think i didn't know where i was.
but then you remember and everything makes sense again. like life is real.
Many times you can force yourself into weird states.
For example stay in a room and do go outside to the city (or town), for the whole day, leave at night and things seem surreal.
They do for me the times if I've done thise.