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Tikkun 21 – 139
The Lulav and Etrog also represent the aspect of the three column of the Tree of Life.
The רשע , wicked, has only the desire for the self alone and is the aspect of the left column and the Arava, two willow branches. They have no scent nor taste. Two also represents separation.
The בינוני, good person, does good and follows the system. He represents the right column and the Hadas, the three Myrtal branches. They have a good scent but no taste. Three represents the balance of their actions.
The צדיק, righteous person, is one that his actions are to reveal light in Malchut for the sake of others. He is represented by the Etrog, the citrus fruit, which comes from a tree and has scent and taste. It also contains seeds with the energy of continuation.
The Etrog, like the Tzaddik, connects to Zeir Anpin, which is the Lulav and draws the light to Malchut. It is a Mitzvah, meaning a connection to light, to eat from the Etrog after it completes its service.