Another explanation: "Your eyes are doves." The Holy One, blessed be He, said to her: Your likeness resembles a dove. One who wishes to buy wheat says to his fellow, show me a sample of them; so too you, your sample resembles a dove. How so? When Noah was in the ark, what is written? "And the dove came in to him at the time of evening, and behold an olive leaf [was in its mouth]" (Genesis 8:11). The Holy One, blessed be He, said to her: Just as the dove brought light into the world, so you, who are likened to a dove, bring olive oil and kindle it before Me, as it is said, "And you shall command" and so forth (Exodus 27:20).
The Dove That Brought Light and the Oil of the Lamp
Yalkut Shimoni on Torah 375:6
דָּבָר אַחֵר, "עֵינַיִךְ יוֹנִים". אָמַר לָ(י)הּ הַקָּדוֹשׁ בָּרוּךְ הוּא, דֻּגְמָא שֶׁלָּךְ דּוֹמָה לְיוֹנָה, מִי שֶׁמְּבַקֵּשׁ לִקַּח חִטִּים אוֹמֵר לַחֲבֵרוֹ הַרְאֵנִי דֻּגְמָא שֶׁלָּהֶן, אַף אַתְּ, דֻּגְמָא שֶׁלָּךְ דּוֹמָה לְיוֹנָה, כֵּיצַד, כְּשֶׁהָיָה נֹחַ בַּתֵּבָה מַה כְּתִיב, (בראשית ח, יא) "וַתָּבֹא אֵלָיו הַיּוֹנָה לְעֵת עֶרֶב וְהִנֵּה עֲלֵה זַיִת" אָמַר לָהּ הַקָּדוֹשׁ בָּרוּךְ הוּא, מַה הַיּוֹנָה הֵבִיאָה הָאוֹרָה לָעוֹלָם, אַף אַתֶּם שֶׁנִּמְשַׁלְתֶּם כַּיּוֹנָה הָבִיאוּ שֶׁמֶן זַיִת וְהַדְלִיקוּ לְפָנַי, שֶׁנֶּאֱמַר וְאַתָּה תְּצַוֶּה וְגוֹ'.