God's dream is from a different formulation, but I'll use a Jewish one which is very close. The merging that Rebbe Nachman refers to is what I had in mind. Awakening from the dream is to me the merging into Hashem which I called God.
"Before Hashem manifested Himself, when all things were still hidden in Him... He began by forming an imperceptible point; that was His own thought. With this thought He then began to construct a mysterious and holy form... the Universe." - The Zohar
"Empty your heart and mind of all your mundane preoccupations and then work to nullify all your negative traits, one after the other, until in the end you nullify all sense of self completely. First work on one character trait, then another and another, until you reach the point where you are free of any self-centeredness and any sense of independent existence.
You must be as nothing in your own eyes. Then you will be worthy of attaining true self-nullification and your soul will be merged with its root. The whole universe will be merged with you in your Source. You and everything with you will be merged in the Unity of Hashem." - Rebbe Nachman of Breslov
Huh... Exactly what God told me.