Kabbalah sa Mga Awit 145:15: Sefer HaBahir, Sha'arei Orah & Tikkunei Zohar

His students asked Rabbi Berachiah, "Accept our words before you!" He did not give them permission. One time, he did give them permission, but he* did this to check whether now they could direct their souls. "The first day," he examined them and said, "Let me hear your wisdom."
They opened and said, "'In the beginning' (Genesis 1:1) is one. [Two is:] 'Spirit that will wrap itself is from before me; souls I made' (Isaiah 57:16). [Three is:] 'The brook [פלג] of Elohim is filled with water' (Psalms 65:10)."
[Rabbi Berachiah asked them,] "What is 'brook'?"
[They answered,] "You taught us, our rabbi,** that [God] took waters of creation and divided them, gave half in the heavens and half in the ocean sea, as is written, 'The brook of Elohim is filled with water' — and through it, a person learns Torah. As rabbi Chama said, 'Through the merit of gemilut chasadim a person learns Torah. Similarly, it is written, All who are thirsty, go to water, and if he has no money [כסף], go, obtain food and eat' (Isaiah 55:1) — go to Him and He will bestow kindness to you: obtain*** and eat!'"
*[Ed. - Sefaria text reads "she," but other versions say, "he."]
**[Ed. - Sefaria text reads "we saw"; other versions of the text say "our rabbi."]
***[alternatively, 'hope.' For example, see Nehemiah 2:13, 15; Psalms 119:166, 145:15; Esther 9:1]

Know, that on days that there is an additional Musaf prayer, the Crown-Keter-כתר must be mentioned in the sanctification prayer (Kedushah). About this we recite,³⁵⁷In the liturgy of the Musaf repetition. “A Crown-Keter-כתר is given to You, HaShem-יהו״ה our God, by the multitudes assembled above, and by the multitudes assembled below.” That Crown-Keter-כתר is made of all the prayers and praises gathered from the blessing of “Yotzer.”³⁵⁸The first blessing of the Shema recital, in which the sanctification is also mentioned. All the multitudes above and below thus are unified as one, as emissaries of the Crown-Keter-כתר at the very depth of the inception of their existence, and they thus await one another until they all are unified, so that all the prayers will ascend as one to the world of Desire-Ratzon-רצון. This is so that the sustenance of all the worlds will be drawn from the very depth, inception, and Source of their existence. For, all the multitudes above eagerly wait for their portion to come from the Crown-Keter-כתר, by which their existence is sustained. The sign for this is the verse,³⁵⁹Psalms 145:15 “The eyes of all look to You with hope, and You give them their food in its proper time.” I shall further hint at the matter with the next verse,³⁶⁰Psalms 145:16 “You open Your hand-Yadecha-ידיך, and satisfy the desire of every living being.”³⁶¹As already explained before, do not read it as “Your hand-Yadecha-ידיך,” but rather, “Your Yod-יודי״ך.” Also see Tikkunei Zohar 7b Know that it is by means of the Desire-Ratzon-רצון that every living being elicits its needs from the Crown-Keter-כתר. If HaShem-יהו״ה, blessed is He, desires it, we shall yet compose a book on the matters of the world of the Crown-Keter-כתר, its goings and comings, to the extent that we have grasped, for these matters are very transcendent and removed-Ateekeem-עתיקים.

I must now awaken you to a great principle. Know that when HaShem’s-יהו"ה quality as the Living God-El Chai-א"ל חי unifies with His quality of Lordship-Adona”y-אדנ"י, His quality of Lordship-Adona”y-אדנ"י then sits on the throne of Kingship-Malchut and rules over all the creatures. However, when His quality as the Living God-El Chai-א"ל חי withdraws from it, it then is considered that His quality of Lordship-Adona”y-אדנ"י, which is called the Indwelling Presence of HaShem-יהו"ה, the Shechinah, goes into exile under other dominions and alien powers. This is the matter of the verse,⁹⁸Proverbs 30:23 “because of a maid-servant who inherits what belongs to her mistress.” Our sages, of blessed memory, therefore said that in our prayers,⁹⁹Talmud Bavli, Brachot 4b “It is necessary to juxtapose (Lismoch-לסמוך) the blessing of redemption to the Amidah prayer. This is because the Living God-El Chai-א"ל חי is the matter of redemption-Geulah-גאולה and the Lord-Adona”y-אדנ"י is the matter of prayer-Tefillah-תפילה. When they are juxtaposed (Semuchim-סמוכים) to each other, everything is then in a state of unity, perfection, and blessing. The sign for this is the verse,¹⁰⁰Psalms 145:14 “HaShem-יהו"ה supports (Somech-סומך) all the fallen.” However, when this is not so, the verse,¹⁰¹Isaiah 24:20 “She has fallen and will not continue to rise” applies.