This is your misunderstanding. It happens in your dreams and in your life.

Life is a big dream, and some actual plots and real fragments in life will be recalled many years later.

Like fragments of a dream, off and on. Become unreal.

When these things are in harmony with your dreams, you can't tell which is the dream and which is the reality.

People who are truly detached will connect their dreams with reality, and what they do in reality is what they want to do in their dreams. In this way, both dreams and realistic dreams are big dreams.

If you are really such a detached person, then the flute music in your dream may be played truly and completely after waking up.