When love flows like water, the ability to communicate can fully be revealed. The capacity to express oneself is in direct proportion to how much love is given or held back. In Kabbalah and Chassidut, the free flow of expression is called "redemption" and the inability or blockage of that ability is "exile."
Three examples of this dynamic are seen in the sin of Adam and Eve, Joseph and his brothers and the Passover Seder.
The Midrash relates that although Adam and Eve loved each other, their relationship was fraught with petty jealousy and suspicion. Because of this, Adam failed to properly communicate G-d's directive not to eat from the Tree of Knowledge of Good and Evil, and added to it the prohibition not to touch it as well. As a consequence, the snake pushed Eve against the tree and tempted her by saying that just as no harm came to her as a result of touching the tree, no harm would come from eating it. This led to the eating from the tree and subsequent exile from the Garden of Eden.
After Joseph relates his dreams to his brothers, the Torah states "and the brothers continued to hate Joseph and could not communicate peacefully with him" (Genesis 37:4). Their inability to communicate, born from their hatred, lead to not only Joseph's descent into Egypt as a slave but their own exile as well.
The Haggadah of Passover, the festival of freedom, represents the rectification of communication, and celebrates our redemption from the exile of Egypt. The word Haggadah means "telling." On Seder night, generation after generation of Jews have sat together as families and told the story of exile and redemption and its relevance today. No night in the Jewish calendar leaves a stronger impression on children, as they lovingly receive the tradition from their elders. Although the Hebrew name of this holiday, Pesach , simply translated means "to leap" or "to pass over," it is homiletically explained to mean "the mouth speaks" (peh-sach). After experiencing isolation, loneliness or depression on an individual basis, or oppression on a political level, the freedom to communicate is an exhilarating leap from darkness to light, from exile to redemption.