Main Kabbalistic Sources: Baal HaSulam’s Commentaries on the works of the ARI and The Book of Zohar
And who better than I knows that I am not at all worthy of being even a messenger and a scribe for disclosing such secrets, and much less to thoroughly understand them. And why has the Creator done so to me? It is only because the generation is worthy of it, as it is the last generation, which stands at the threshold of complete redemption. And for this reason, it is worthy of beginning to hear the voice of the Messiah’s Shofar, which is the revealing of the secrets, as has been explained.
– Baal HaSulam, “Messiah’s Shofar”