Kabbalah sa Genesis 28:16: Sha'arei Orah

This Sefirah is also called Fear-Yirah-יראה. That is, whosoever comes to contemplate this deep and supernal place, should do so with fear and dread, for perhaps his thoughts will become confused and his thoughts may begin to run and ponder beyond the appropriate measure. About this Sefer Yetzirah says,²⁰⁸Sefer Yetzirah 1:8 “Muzzle your mouth from speaking, and your heart from pondering, and if your heart runs, return [it] to [its] place.” For, this place is a place of fear and dread to ponder the matter and its depth. Thus, when our forefather Yaakov arrived at this place called Something-Yesh-יש, he was filled with fear and dread, saying,²⁰⁹Genesis 28:16-17 “Surely, there is-Yesh-יש HaShem-יהו״ה is in this place! He became frightened-Vayirah-ויירא and said, ‘How awesome-Norah-נורא is this place!’” Even though the Sefirah of Splendor-Tiferet is called “Awesome-Norah-נורא,” this is because it ascends to the heights and adheres to the Sefirah of Crown-Keter, which is the secret of the Desire-Ratzon-רצון and the secret of Fear-Yirah-יראה. Similarly, it states about Moshe,²¹⁰Exodus 3:6 “He was afraid-Yareh-ירא to gaze,” meaning, in the depth of his thoughts, in that he set a boundary to his thoughts. Praised is he who, like our teacher Moshe, peace be upon him, attains the level of fear-Yirah-יראה.