מדרש על אסתר 2:9

Rabbi Zechariah said: || Merit is transmitted by the hand of the worthy. By the hand of Daniel the sovereignty was transferred to Esther, because he said to the king, Let not the king weep, since all that thou hast done thou hast done according to the Torah. And whosoever keeps the Torah, the Holy One, blessed be He, preserves his kingdom; for thus the Torah says that the man shall rule his wife, as it is said, "And he shall rule over thee" (Gen. 3:16). The king sent in all the provinces to do according to his words, as it is said, "That every man should bear rule in his own house" (Esth. 1:22). He also said to the king: "Let there be sought for the king fair young virgins" (Esth. 2:2). Not "all young virgins," but "fair young virgins." "And let the maiden which pleaseth the king be queen instead of Vashti" (Esth. 2:4); and it is written elsewhere, "And the maiden pleased him" (Esth. 2:9). This refers to Esther. The Holy One, blessed be He, invested her with grace and love in the eyes of all who saw her. "And Esther obtained favour in the sight of all them that looked upon her" (Esth. 2:15 ).