in trance... vocabulary lessons

Working on German vocabulary today with Vasso, we came across the expression "tranceähnlicher Zustand : Zustand wie in Trance"

So what is "Trance" anyway?

This is what I found in the dictionary:

(Wahrig) Trance: schlafähnlich. Dämmerzustand
(Oxford) Trance: a state in which somebody seems to be asleep but is aware of what is said to them for example if they are hypnotized


PS - it also reminded me of this song (which we listened to of course - ότι θυμάμαι χαίρομαι!!!)