Attainment of the Torah Begins with “Sod” (Secret) and Ends with “Peshat” (Literal)
Now you will understand the truth in the words of the Vilna Gaon in the prayer book, in the blessing for the Torah [to which he added his note]. He wrote that the Torah begins with Sod (secret), meaning the revealed [to a common person] Torah of Assiya, which is considered hidden, since the Creator is completely hidden there [and that’s why it seems to us that the Torah speaks about the earthly matters].
Then he moves on to [studying the Torah at the level of] the Remez (intimation), meaning that He is more revealed in the Torah of Yetzira [when a person rises to the level of Assiya]. Finally, [as a result of correction] one attains the Peshat (literal), which is the Torah of Atzilut. It is called Peshat, for it [the Torah] is Mufshat (stripped) of all the clothes that conceal the Creator.
– Baal HaSulam, “Introduction to The Study of the Ten Sefirot,” Item 148
Laitman.com Post: Kabbalists About The Concealed Torah And The Revealed Torah, Part 2
Laitman.com Post: Kabbalists About The Concealed Torah And The Revealed Torah, Part 3
Laitman.com Post: What Is The “Torah”?