Дварим 4:29 Каббала: Sha'arei Orah

Now, the reason that HaShem-יהו״ה, blessed is He, is called by the title “You-Atah-אתה,” is because He is inner, and not openly revealed to the creatures, like His quality of Lordship-Adona”y-אדנ״י. This is because the Name HaShem-יהו״ה, blessed is He, dwells within His name of Lordship-Adona”y-אדנ״י like a King in His Sanctuary-Heichal-היכל, and is not found until He is sought out.⁵⁵²See Ginat Egoz of Rabbi Yosef Gikatilla, translated as HaShem is One, volume one and on. This is as stated,⁵⁵³Deuteronomy 4:29 “From there you will seek HaShem-יהו״ה your God, and you will find Him.” Likewise, King David, peace be upon him, who knew the secrets of the Upper World, warned his son Solomon about this and said,⁵⁵⁴Chronicles I 28:9 “And you, my son Solomon: Know the God of your father and serve Him with a perfect heart and with a willing soul… If you seek Him, He will be found to you; but if you forsake Him, He will spurn you forever.” This is the Great King before Whom every person must go and set forth His tributes, His praises, and His goodness, and say before Him, “You-Atah-אתה are the Ruler over the upper and lower, You-Atah-אתה are He, and none compare to You.” This is the secret of all the prayers, in which one must first declare HaShem’s-יהו״ה praises, blessed is He, and only afterwards plead for his needs, like how our teacher Moshe, peace be upon him, prayed, saying,⁵⁵⁵Deuteronomy 3:23 “You-Atah-אתה have begun to show Your servant Your greatness and Your strong hand, for what power is there in the heavens or on the earth that can perform according to Your deeds and according to Your mighty acts?” Only after praising HaShem-יהו״ה, blessed is He, with His title “You-Atah-אתה,” did Moshe then plead for his needs, saying, “Let me now cross and see the good Land.”