Part I; Likkutei Amarim, Chapter 12
The whole chapterגאַךְ מַהוּת וְעַצְמוּת נֶפֶשׁ הָאֱלֹהִית, שֶׁהֵן עֶשֶׂר בְּחִינוֹתֶיהָ, לֹא לָהֶן לְבַדָּן הַמְּלוּכָה וְהַמֶּמְשָׁלָה בָּעִיר קְטַנָּה, כִּי אִם בְּעִתִּים מְזוּמָּנִים, כְּמוֹ בִּשְׁעַת קְרִיאַת שְׁמַע וּתְפִלָּה שֶׁהִיא שְׁעַת מוֹחִין דְּגַדְלוּת לְמַעְלָה, וְגַם לְמַטָּה הִיא שְׁעַת הַכּוֹשֶׁר לְכָל אָדָם, שֶׁאָז מְקַשֵּׁר חָכְמָה־בִּינָה־דַּעַת שֶׁלּוֹ לַה׳ – לְהַעֲמִיק דַּעְתּוֹ בִּגְדוּלַּת אֵין־סוֹף בָּרוּךְ־הוּא, וּלְעוֹרֵר אֶת הָאַהֲבָה כְּרִשְׁפֵּי אֵשׁ בֶּחָלָל הַיְמָנִי שֶׁבְּלִבּוֹ, לְדָבְקָה בוֹ בְּקִיּוּם הַתּוֹרָה וּמִצְוֹתֶיהָ מֵאַהֲבָה, שֶׁזֶּהוּ עִנְיָן הַמְבוֹאָר בִּקְרִיאַת שְׁמַע דְּאוֹרַיְיתָא, וּבִרְכוֹתֶיהָ שֶׁלְּפָנֶיהָ וּלְאַחֲרֶיהָ שֶׁהֵן מִדְּרַבָּנָן – הֵן הֲכָנָה לְקִיּוּם הַקְּרִיאַת־שְׁמַע, כְּמוֹ שֶׁנִּתְבָּאֵר בְּמָקוֹם אַחֵר; וְאָז, הָרָע שֶׁבֶּחָלָל הַשְּׂמָאלִי כָּפוּף וּבָטֵל לַטּוֹב הַמִּתְפַּשֵּׁט בֶּחָלָל הַיְמָנִי מֵחָכְמָה־בִּינָה־דַּעַת שֶׁבַּמּוֹחַ הַמְקוּשָּׁרִים בִּגְדוּלַּת אֵין־סוֹף בָּרוּךְ־הוּא.
3However, the essence and being of the divine soul, which are its ten faculties,3 do not constantly hold undisputed sovereignty and sway over the “small city,” except at appropriate times, such as during the recital of the Shema or the Amidah, which is a time when the Supernal Intellect is in a sublime state;4 and likewise below, this is a propitious time for every man, when he binds his chabad (intellectual faculties) to G–d, to meditate deeply on the greatness of the En Sof, blessed is He, and to arouse the burning love in the right part of his heart, to cleave to Him by virtue of the fulfillment of the Torah and its commandments out of love. This is the essential aspect of the Shema, the recital of which is enjoined by the Torah5 and of the blessings which precede and follow it, which are a Rabbinical enactment,6 the latter being the preparation for the fulfillment of the recital of the Shema, as is explained elsewhere.7 At such time the evil that is in the left part is subjected to, and nullified in, the goodness that is diffused in the right part, from the wisdom, understanding, and knowledge (chabad) in the brain, which are bound to the greatness of the En Sof, blessed is He.8
דאֲבָל אַחַר הַתְּפִלָּה, בְּהִסְתַּלְּקוּת הַמּוֹחִין דְּגַדְלוּת אֵין־סוֹף בָּרוּךְ־הוּא, הֲרֵי הָרָע חוֹזֵר וְנֵיעוֹר בֶּחָלָל הַשְּׂמָאלִי, וּמִתְאַוֶּה תַּאֲוָה לְתַאֲוֹת עוֹלָם הַזֶּה וְתַעֲנוּגָיו.
4However, after prayer, when the state of sublimity of the Intellect of the En Sof, blessed is He, departs, the evil in the left part reawakens, and he begins to feel a desire for the lusts of the world and its delights.
Kehot Publication Society (English Translation)