There are causes and effects and in reality there is orchestration. Witnesses will agree, that our shoes feel like our shoes, look like our shoes, smell like our shoes. Thus in the real reality everything is orchestrated and in agreement. In a dream, we wake up and no one else has the same experience we had. Contiguousness and orchestration are the only proofs that our waking dream, wide awake consciousness is real.
Dreams are private, and reality is shared.