Earlier quoted context omitted.
>reality is all that which is extended in space and time You are missing the fact that "space" and "time" are also illusions painted on consciousness.
Alas, no I am not. They're properties of the world which consciousness measures. A mountain is painted in the ink of a photo, the mountain is not an illusion. You're focused only on the measurement, and not what is measured.
I understand your difficulty. It is hard to imagine the universe disappearing if all consciousness cease to exist the next second.
But is that really hard? Don't everything in your dreams disappear when you wake up?
Let me ask another question. Can you differentiate between a consciousness observing a universe, and a consciousness with a sensation of a whole universe, built in?
And the point of that is our subjective experiences only require consciousness, and not a universe that is independent of it.