Kabbalah su Salmi 134:1

Rabbi Yehuda opened the discussion with the verse, "Behold, bless Hashem, all you servants of Hashem..." (Tehilim 134:1). This verse was explained, yet come and behold, it is written, "Behold, bless Hashem." Who are those worthy of blessing the Holy One, blessed be He? "All you servants of Hashem." Although anyone from Yisrael is worthy of blessing the Holy One, blessed be He, who gives the blessings for the sake of the supernal and lower beings? "All you servants of Hashem," yet not everyone. Whose blessing is considered a blessing? Those "who stand by night in the house of Hashem" (Ibid.); those who wake up at midnight to study Torah. These are those "who stand by night in the house of Hashem." For then the Holy One, blessed be He, comes to delight with the righteous in the Garden of Eden. And we are here awakened by the words of the Torah. Let us discuss Isaac, for we are on his level.