Main Kabbalistic Sources: The Book Of Zohar
Rabbi Shimon Bar-Yochai’s soul was of the Surrounding-Light [Ohr Makif] kind. Hence, he had the power to clothe the words and teach them in a way that even if he taught them to many [egoistic, uncorrected masses], only the worthy [very few] of understanding would understand [by correcting themselves or by yearning for self-correction. If a person doesn’t pursue this goal, The Book of Zohar repels him, invokes in him a sensation of rejecting it].
This is why he was given ‘permission’ [from Above] to write The Book of Zohar. The permission was not ‘granted’ to write a book in this wisdom to his teachers or to the first ones who preceded them, even though they were certainly more proficient in this wisdom than he. But the reason is that they did not have the power to dress the matters as did he [to reveal it only to those who really strived for it].
– Baal HaSulam, “Disclosing a Portion, Covering Two”
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