And when one is not intimidated by the world’s darkness but instead proclaims, “let there be light,” and illuminates the world with the light of the inner dimension of Torah—then “there was light,” meaning that in actuality the light of the inner dimension of Torah shines throughout the entire world.
Through this, we merit the revelation of… the actual coming of Moshiach, for when “your wellsprings spread outward,” then “the Master will come—the King Moshiach.” This is the ultimate purpose of creation: that G-d should have a dwelling place in the lower realms.
(the Rebbe, Shabbat Bereshit, 5713—1952)