אֶ֣בֶן שְׁלֵמָ֤ה וָצֶ֙דֶק֙ יִֽהְיֶה־לָּ֔ךְ אֵיפָ֧ה שְׁלֵמָ֛ה וָצֶ֖דֶק יִֽהְיֶה־לָּ֑ךְ לְמַ֙עַן֙ יַאֲרִ֣יכוּ יָמֶ֔יךָ עַ֚ל הָֽאֲדָמָ֔ה אֲשֶׁר־יְהוָ֥ה אֱלֹהֶ֖יךָ נֹתֵ֥ן לָֽךְ׃
A perfect and just weight shalt thou have; a perfect and just measure shalt thou have; that thy days may be long upon the land which the LORD thy God giveth thee.
Zohar
Indeed, this stone is the construction for all the worlds. Because of this, "But you shall have a perfect and just weight (lit. 'stone')..." (Devarim 25:15). She is a measurement between each and every Sefirah, and every Sefirah amounts with her to ten (Sefirot). Her size is the letter Vav. Through her, every cubit between each and every Sefirah becomes ten cubits. This is the secret of the verse: "Ten cubits shall be the length of a board" (Shemot 26:16) and between them all, she (adds up to) 100 (Sefirot). She is ten between every Sefirah and ten multiplied by ten totals one hundred, and when me'ah (Eng. 'one hundred') is reversed, (it is) amah (Eng. 'a cubit').