“From a somewhat earlier period, around 1200, comes the Hebrew protocol, recorded in Rouen, of the appearance of a prophet of the same type, R. Shemuel ha-Nabi, who conversed, in the presence of witnesses, with Moses and the angel Metatron as well as with the tosafist masters Rabbenu Tam and R. Elias of Paris, and who communicated mystical revelations dealing with talmudic matters.
Similar revelations concerning talmudic and halakhic questions likewise occurred in the Languedoc, in the neighborhood of the Rabad and the same generation. Even if we regard as metaphorical rather than strictly mystical the expressions employed by Rabad (see pp. 205-6) with regard to the manifestation of the Holy Spirit in his school, the occurrence of such revelations is conclusively proven by the curious case of Jacob of Marvège (today in the Department of Lozère), who flourished around 1200.
He sought the answers to halakhic problems through “dream questions,” she’eloth halom, that is, through a visionary procedure. Alongside figures of this kind there also appeared pure mystics whose illuminations were of an inward kind that resulted, when the occasion warranted it, in esoteric doctrines.
How did these revelations come about? Did they appear spontaneously, without preparation, to mystically inclined souls, or were they the result of specific acts and rituals that required a certain preparation? Is it possible that a theurgic element also played a role? There is no unequivocal answer to these questions. We do, however, possess certain testimonies suggesting that in this Provençal circle such revelations were linked, at least in part, to a specific ritual and that they were even tied to a particular day.”
Gershom Scholem, Origins of the Kabbalah, pp. 239-40.