Four Species Hallel Paragraph Four
“The heavens are God’s, while the earth has been given to people.” “Were it not for My covenant with the day and night, I had not appointed the ordinances of heaven and earth.” (Jeremiah 33:25) This heaven is that of which it is said, ““The heavens are God’s,” and this earth is the “land of the living,” comprising seven lands of which David said, “I will walk before the Lord in the lands of the living.” (Zohar, Volume 1 24b)
There are actually a total of seven in the Four Species: 1 Lulav + 1 Etrog + 3 Haddasim, + 2 Aravot, corresponding to the “seven lands,” mentioned by King David. They are the celebration of the Covenant of Torah that gives continued existence to the earth that has been given to us.
We also shake the Lulav in six directions with ourselves representing the seventh world, which can reach to the Heaven, which is God’s.