THE UNIVERSE EXISTS WITHIN THE SELF
Q: What is existence?
M: It is subject to birth and decay in order to remind us that it is not our true state.
The universe exists within the Self. Therefore it is real, but only because it obtains its reality from the Self. We call it unreal, however, to indicate its changing appearance and transient form, whereas we call the Self real because it is changeless.
After realization, the body and all else does not appear different from the Self.
— Conscious Immortality