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Tikkun 21 – 150
The unification of Zeir Anpin and Malchut is done with the word אחד of the meditation of Shema Israel. The first two letters אח which also means brother, is the aspect of Zeir Anpin and it gives the power of protection to the ד, which is the aspect of Malchut.
The letter ד is a ר with a dot at the top right corner. Both letters represent attributes of Malchut, ד for דלות and ר for רש that means lack and poorness. The אח with numerical value of 9 and the dot of the ד make 10. It gives protection from אחר which means ‘other God’ and the aspect of the other side, ‘Stira Achra’.
The Zohar quotes Isaiah 42:2 “אֲנִי יְהוָה, הוּא שְׁמִי; וּכְבוֹדִי לְאַחֵר לֹא-אֶתֵּן, וּתְהִלָּתִי לַפְּסִילִים”
“I am YHVH, that is My name; and My glory will I not give to another, neither My praise to graven images.”
This explains the protection that Esther had at the house of the king. She represented the connection of Malchut to Zeir Anpin and because of that, King Achashverosh who was with ‘other Gods’ could not and did not touch her.