"Read Waking Dreams" is an objective in the main quest "At the Summit of Apocrypha" in Elder Scrolls V: Skyrim - Dragonborn.


Go into your inventory and read the Black Book: Waking Dreams of a Starless Sky. This will take the Dragonborn back to the Oblivion realm: Apocrypha to start on your path toward Miraak

Read Waking Dreams - At the Summit of Apocrypha