כִּֽי־בְשִׂמְחָ֣ה תֵצֵ֔אוּ וּבְשָׁל֖וֹם תּֽוּבָל֑וּן הֶהָרִ֣ים וְהַגְּבָע֗וֹת יִפְצְח֤וּ לִפְנֵיכֶם֙ רִנָּ֔ה וְכָל־עֲצֵ֥י הַשָּׂדֶ֖ה יִמְחֲאוּ־כָֽף׃
Porque con alegría saldréis, y con paz seréis vueltos; los montes y los collados levantarán canción delante de vosotros, y todos los árboles del campo darán palmadas de aplauso.
Likutei Moharan
But know, that when one is depressed it is impossible to navigate the mind as one desires, and it is therefore difficult for a person to settle their mind. It is only through joy that one can navigate their mind as they desire and can settle their mind. For joy is "the world of freedom," as in the verse, “for through joy you will go out” (Isaiah 55:12). Meaning that through joy we become free and emerge out of exile.