Medard Boss, in "Martin Heidegger's Zollikon Seminars", interprets Heidegger's dream.

As far as he knew, heidegger's whole dream life consisted of a single dream happening. To be sure, since his student days, he dreamed these events repeatedly at longer or shorter intervals. This too disapeared, but only after he had deepened and broadened the traditional interpretation of Antiquity of "Sein" ("Being") as "Anwesen" ("presence") to the discernment of the "Ereignis" which allows "Sein" ("Being") and "Menschenwesen" ("human being as presence") to be seen as belonging together in an indivisible identity, as "vereignet" ("ordered") "zugeeignet" ("assigned"), "übereignet" ("appropriated") to one another.

Previously, he had dreamed repeatedly he was in the situation of his matriculation examination at the Constance high school. All the professors who had examined him at that time sat once more physically present before him and harassed him with relentless questions.

To understand such dreaming in the context of a life history and in a way appropriate to human nature, it is first necessary to dispose of all the current "depth psychology" theories of dreaming as undemonstrable, and as abitrary instructions leading solely to distorting interpretations of the dream phenomena. In their place, we have to practice a phenomenological approach as was taught by Heidegger himself. Then, what is characteristic of our dreaming as a whole, as well as this single specific dreaming of Heidegger, appears effortlessly of itself. It is specific of our dreaming state that the meaningfulness that appears to us addresses us mostly only from sensorily perceptible beings, which, moreover, do not belong to our own existing. For example, in Heidegger's dreaming, he is addressed primarily by his matriculation examiners. In the following, more clearsighted waking state, we may be addressed by the same "fulfilled meanings," but from more characteristic, much more central facts, or better, "givens," of our existing. So Heidegger's waking perception, too, expanded and focused to an ever clearer awareness of the meaningfulness of being examined, but in an incomparably more comprehensive way than previously in high school. He came to see how he had long been examined out of the center of his being, which consisted primarily of a fundamental ability to think. It brought him suffering enough, that in his waking state he was exposed to the never slackening demand emanating from this center of his being that he endure and pass the maturity examination of his philosophizing. However, his dreaming vision was so highly constricted that of all possible examinations of maturity only that of his high school matriculation examination could occur to him. His own proper and fundamental self-realization was evidently reached with his waking discernment of that state of affairs which revealed itself to him as "das Ereignis." It was this that allowed him to make the audacious leap from the ground of Parmenides' ancient saying, which he then knew how to say in German as: "Perceiving (thinking) and being: the same." If this lightning like revelation of the "Ereignis" had not corresponded to the true completion of his selfhood, how could it be at all comprehensible that Heidegger forthwith not only never again dreamt of having to stand the scrutiny of his examing high school professors, but, now waking, found his way out of the earlier constant pressure to think, and into a wise, serene composure in the depths of his heart.

P. 13, 20

Thunderbolts and lightning! It's only the Central Scrutinizer. Sometimes when you're not looking he just sneaks up on you. Bis es spritzt, spritzt, spritzt, spritzt, Feuer! Very, very frightening me. N.B.: it's okay not to follow the Queen at Joe's Garage conceptual continuity.  ¶ 2:21 AM