The school of Rabbi Yishmael taught: Do not read "In the beginning" [bereshit] but rather "He created six" [bara shit] — sixty [shitin, conduits] were created from the six days of creation, as it is said, "The curves of your thighs are like ornaments" (Song of Songs 7:2); these are the sixty hollow channels that descend down to the deep. "The work of a master craftsman's hands" — this is the craftsmanship of the Holy One, blessed be He.
Reading Bereshit as the Sixty Pillars Beneath the World
Yalkut Shimoni on Torah 2:6
תָּנָא דְּבֵי רַבִּי יִשְׁמָעֵאל, אַל תִּקְרָא "בְּרֵאשִׁית" אֶלָּא "בָּרָא שִׁית" שִׁיתִין מִשֵּׁשֶׁת יְמֵי בְּרֵאשִׁית נִבְרְאוּ, שֶׁנֶּאֱמַר, (שיר השירים ז, ב) "חַמּוּקֵי יְרֵכַיִךְ כְּמוֹ חֲלָאִים" אֵלּוּ שִׁיתִין הַחֲלוּלִים וְיֹרְדִים עַד הַתְּהוֹם. "מַעֲשֵׂה יְדֵי אֳמָּן" מַעֲשֵׂה אֻמָּנוּתוֹ שֶׁל הַקָּדוֹשׁ בָּרוּךְ הוּא.