Come and see! When souls ascend to the place that is bound to life [the Garden of Eden or Paradise] they delight in the radiance of the Luminous Lantern [Aspeklaria Ha-meira] through which light from a higher source flows. If the soul does not enwrap itself in the radiance of another garment, it cannot approach and gaze upon that light. The mystical secret of this can be compared to the garment which enwraps the soul so that it can endure in This World. Similarly, it is given a garment of supernal radiance so that it can endure that world and gaze upon that luminous lantern in the Land of Life.

Moses…was able to approach the thick cloud in which the Divine Presence was revealed….

Now come and see: Moses could not approach and gaze upon whatever it was that he gazed upon until he was clothed in another garment, as the verse states, "Moses went into the cloud and climbed to the top of the mountain," which the Targum [Aramaic translation] renders as "wrapped in the cloud". He was clothed in it like one wears a garment, and therefore he was able to approach the thick cloud in which the Divine Presence was revealed….

This garment is what our colleagues refer to as "chaluka d'rabbanan" [the rabbinical mantle] in which they enrobe themselves in This World. Happy is the lot of the righteous, for whom the Holy Blessed One has concealed goodness and delight [of the soul] in that world. Regarding this, it is written, "No eye has ever seen it other than You, O Lord; but You will make it [possible] it for those who trust in You." (Isaiah 64:3)

[Edited by Moshe-Yakov Wisnefsky; based on Zohar I, 66a.]