Kabbalah 1 Samuel 12:15: Sha'arei Orah

In contrast, the final half of the Name, which are the letters Vav-Hey-ו״ה, cannot be called a name unto itself. This is because when these letters are on their own, the plantings are severed. This is because the upper Sefirot do not depend on the lower Sefirot, [but on the contrary, the reverse is true]. Moreover, the second half of the Name is not numerically equal to the whole Name. That is, when Ya”h-י״ה is read, it includes the second half of the Name, without any severance.²There are several explanations of what this means. The first is that the form of the letter Hey-ה of the Name HaShem-יהו"ה is made up of the letters Dalet-ד and Vav-ו, and therefore the letter Hey-ה includes both the Vav-ו-6, which are the six emotive Sefirot, and the Sefirah of Kingship-Malchut, which is the letter Dalet-ד. Another explanation is that the names of the letters of Ya”h-י"ה are Yod-Hey- יו״ד ה״א, in which the additional letters Vav-Dalet-ו״ד-10 and Alef-א-1 equal Vav-Hey-ו״ה-11. Thus, the name Ya”h-י״ה includes the Vav-Hey-ו״ה-11 within it, However, the reverse is not true, in that the letters Vav-Hey-ו"ה-11 do not include Ya”h-י"ה. Now the same is true of the Sefirot, in that the three upper Sefirot include the seven lower Sefirot, but the seven lower Sefirot do not include the three upper Sefirot. An additional matter will be stated shortly. (Also see Pardes Rimonim, Shaar 20, Ch. 3.) Likewise, the numerical value of Ya”h-י״ה when its letters are named is Yod-Hey-יו״ד ה״א, which equals כ״ו-26. Thus, half the Name HaShem-יהו״ה-26 is like the whole name. However, this only is true of the first half of the Name. In contrast, the second half of the Name HaShem-יהו״ה depends on the secret of Ya”h-י״ה for its very existence and sustainment.