4. "In the beginning" (Beresheet 1:1) Rabbi Shimon quoted the verse, "the flower buds appear on the earth" (Shir Hashirim 2:12). "The flower buds" refer to the act of creation; "appear on the earth." When? On the third day, as it is written, "And the earth brought forth" (Beresheet 1:12). Since then, they have been seen on the earth. "The time the singing bird (also: 'pruning') is come" alludes to the fourth day, when the "pruning of the tyrants" took place. THEREFORE, OF THIS DAY IT IS WRITTEN, "LET THERE BE LUMINARIES" (BERESHEET 1:14), with the letter Vav missing from the word luminaries. (The Hebrew word 'luminaries' when written without a Vav, can be read as a curse). "And the voice of the turtledove" (Shir Hashirim 2:12) refers to the fifth day, about which it is written, "Let the waters swarm" (Beresheet 1:20), so they can produce offspring. "Is heard" (Shir Hashirim 2:12) refers to the sixth day, on which it says, "Let us make man" (Beresheet 1:26), who shall put action before listening. Because it says here, "Let us make man," while there on Mount Sinai, when Hashem asked Yisrael about the Torah, they said "we will do, and obey (listen)" (Shemot 24:7). "In our land" (Shir Hashirim 2:12) refers to the day of Shabbat, which represents the Land of Life, WHICH IS THE WORLD TO COME.
5. Another explanation is that the flowers are the Patriarchs who come to thought (mind) and came into the World to Come, NAMELY BINAH, where they were hidden. They emerged from there secretly and hid themselves among the true prophets. Joseph was born and they hid in him. When Joseph entered the Holy Land, he revealed their presence and then "they appear on the earth" and were seen there. And when are the Patriarchs seen? When the rainbow is seen in the sky, because that is when they appear. And at that moment, "the time of pruning has come." This means that this is the period to cut the wicked from the world. But why were the wicked saved? Because "the flowers appear on the earth." If they had not ALREADY appeared SO LONG AGO, (THE WICKED) would not have remained on earth, and the world would have been destroyed.
6. And who sustains the world and causes the Patriarchs to appear? It is the voices of the children who study the Torah. And the world is saved (from destruction) for the sake of these children. In deference to them, it is written, "We will make you necklets of gold" (Shir Hashirim 1:11). This refers to the children, boys and young men, as is written, "And you shall make two Cherubs of gold" (Shemot 25:18).