Zohar 1:15b-16a

Jewish Mysticism
“And the enlightened will shine like the splendor of the firmament” refers to the pillars and supports of that palanquin. “The enlightened” (ha-maskilim) are the upper pillars and supports [i.e., the kabbalists] who contemplate (mistakkelei) with their understanding the palanquin [Shekhinah] to the extent that it is necessary… “They will shine,” for if they did not shine and were not illuminated, they would not be able to gaze upon and contemplate that palanquin to the extent that is necessary… “The splendor” (zohar)–that which illuminates the Torah. “The splendor” which shines upon the heads of that beast [i.e., Shekhinah] and these heads are the enlightened who shine perpetually and who contemplate that firmament and the light that emerges from there which is the light of Torah that shines constantly without pause.

Translated by Elliot Wolfson in Through a Speculum that Shines- Vision and Imagination in Medieval Jewish Mysticism, Princeton- Princeton University Press, 1994.