Nefesh HaChayim, Reb Itzele's Long Annotation

In that way the Torah is fully integrated from beginning to end, this being what is stated in the Zohar (Ehmor 98b): “The entire Torah is [both] sealed away and revealed492Heb.: sa-toom v’ga-lui—Reb Itzele uses a number of words for different kinds and degrees of hiddenness. Here he uses sa-toom, implying being sealed away from observation and intellectual comprehension. In contrast he uses a single word for being revealed and accessible for observation & intellection: ga-lui., just as the holy name is [both] sealed away and revealed, because the entire Torah is God’s holy name, and therefore it is [both] sealed away and revealed.